When will my phone get the Android 2.3 update (Gingerbread)? Android 2.3 (Gingerbread) SDK was released on December 6, 2010. (High-level user highlights)

Of course, not all devices will get this update right away and others won't get it at all. Each manufacturer and carrier often choose to add their custom modifications which tend to delay the official release.

When will each device get Android 2.3, either officially or unofficially, if ever?

See also:


When will my phone get the Android 2.2 update (FroYo)?
When will my tablet get the Android 3.x update (Honeycomb)?
When will my device get the Android 4.0 update (Ice Cream Sandwich)?
This community wiki will list all of the known and rumored dates for devices. If you have an update make sure to follow the format that's been established, and the following guidelines:

Keep phones in alphabetical order listing the manufacturer and model
Specify if the date is confirmed or rumored and link to the source
If there is an unofficial release, link to the site where it can be downloaded
If a new update comes out (e.g. 2.3.5 over 2.3.4), link to the new and don't keep the old information

Note that devices that do not meet Google's Compatibility Definition will not receive a Google-sanctioned update.  In the case of the major manufacturers and many others, that means they won't release an update at all since Google's certification is important to their business.
Phones
Commtiva z71

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Geeksphone One

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Geeksphone Zero

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Google Nexus One

Official: 23rd February 2011. (According to a tweet)

Unofficial:

Without Market support: 17th December 2010.  (Via Chris Soyars)
2.3.7: 11th October 2011.  (CyanogenMod 7.1)



HTC Aria

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC Desire

Official, manual update: 1st August 2011.  (HTC UK Announcement on Facebook and HTC Dev download center)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC Desire HD

OTA: 4th May 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC Desire Z / G2

Official: 29th July 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC Droid Incredible

OTA: November 14, 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC Droid Incredible 2

Official: 12th July 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC Droid Incredible S

Official:

OTA: 4th May 2011.  (Confirmed)
Canada: 29th July, 2011.  (Confirmed)


Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC EVO 4G

Official: 6th June 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC EVO Shift 4G

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC Hero

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC Inspire 4G

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC Legend

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC myTouch 3G Slide

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC myTouch 4G

Official: 5th August 2011. (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


HTC Tattoo / Click

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

HTC Thunderbolt

Official: September 2011.  (Confirmed)

HTC Wildfire / Buzz

Official: Never. (Official mail from HTC support; cause: doesn't meet the minimum requirements, e.g., 1 GHz processor)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


Huawei U8220

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

LG Optimus 2X / G2X:

Official: 29th July 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


LG Optimus 3D

Official: 22 November 2011 (confirmed)

LG Optimus One P500

Europe Official: 6th July 2011. (Confirmed)

LG Revolution

Official: 28 October 2011 (confirmed)

Motorola Atrix 4G MB860

Official: 29th July 2011.  (Confirmed)

Motorola Backflip / Motus MB300

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Motorola Cliq MB200

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Motorola Cliq XT MB501

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Motorola Defy MB525

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Motorola Droid A855

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Motorola Droid 2 A955

OTA: 24 October 2011.  (Confirmed)

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


Motorola Droid X MB810

Official: 24 October 2011.  (Confirmed)

Unofficial:

12th December 2010. (Information)
Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)



Motorola Milestone X

Official: 26 October 2011 (confirmed)

Samsung Droid Charge

Official: December 2011  (confirmed)

Samsung Galaxy Ace / Gio / Fit / Mini

Official: 4th August 2011.  (Confirmed)

Samsung Galaxy S
1. Canada Bell Vibrant GT-i9000M

Official 2.3.3: 15th September 2011.  (Instructions)

2. Canada Telus Fascinate 3G+ SGH-T959D

Official 2.3.3: 15th September 2011.  (Instructions)

3. International GT-i9000

Official:

OTA: 16th April 2011.  (Rollout started and then pulled in Europe) (Leaked download)
Kies: Summer 2011.  (Instructions) (List of upgrades for each operator available via Kies)
2.3.4 XXJVR via Odin: 27th July 2011. (XDA update guide)


Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)


4. US AT&amp;T Captivate SGH-i897

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

5. US Sprint Epic 4G

Official: 9 November 2011 (confirmed)

6. US T-Mobile Vibrant SGH-T959

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

7. US Verizon Fascinate / US Cellular Mezmerize / C Spire Wireless Showcase SCH-i500

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Samsung Infuse 4G

OTA: Leaked 2.3.5.  (Information)

Sony Ericsson Xperia Arc

Official (2.3.4): 18 October 2011 (Confirmed)

Sony Ericsson Xperia X8

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Sony Ericsson Xperia X10

Official: 3Q 2011.  (Confirmed)

ZTE Blade / Orange San Francisco / Dell XCD35

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

ZTE V9

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Tablets
Barnes &amp; Noble Nook Color

Unofficial 2.3.7: 11th October 2011.  (CyanogenMod 7.1)

Samsung Galaxy Tab

Official:

Sprint: 5th July 2011.  (Confirmed)
UK: 29th July 2011.  (Confirmed)
Verizon: 31 October 2011 (confirmed)




This is not specific to Gingerbread, but this forum posts lists the rough dates for all Android versions for all Motorola models: https://supportforums.motorola.com/community/manager/softwareupgrades