Looking for list of USB OTG/USB Host officially supported in Android devices (allow connect USB sticks, etc) NON-rooted I'm looking for a definitive list of Android devices that officially support USB On-the-go (OTG) / USB Host (non-rooted).

USB OTG/USB Host means that they can be used in a similar way to a PC whereby USB devices can be attached to them for them to access. E.g. memory sticks and other USB storage (mass storage class).

I am not looking for rooted devices (I know that such procedure can make a device support USB OTG/USB Host if the hardware supports it). I am looking for official support, out-of-the box. 

Some devices may require adapter cables if necessary (i.e. micro USB to female USB socket).

So far I know at least one device that supports USB OTG / USB host out-of-the-box (non rooted): 

The GoTab GBT740R 7" Android 4 Ice Cream Sandwich tablet, costing just 100 pounds or less in UK! This device has a full size USB female socket to support USB OTG / USB Host. A friend owns one, his USB memory sticks work in this - we can browse to the USB stick contents using Astro File Manager App on the tablet. (By the way, I don't work for GoTab). This seems to be a feature-rich device though for the price point: microSD and HDMI also supported.

Any more devices? usb.org doesn't seem to have a list, well I haven't found it yet, nor Wikipedia entries.
Acer Iconia Tab A200 (includes full-size USB A connector, takes flash keys no problem)