How do I find the incremental upgrades direct download links?
Apparently it goes something like this:


somebody gets the OTA update on their phone
they use a logcat tool to find the URL in the logs.
they post the URL on some forum.


Source: http://forums.androidcentral.com/verizon-droid-incredible/31295-how-get-ota-download-location-share.html#post309933