With just 9 days left in September, we are inching closer and closer to the end of the time frame that HTC gave us for the release of Gingerbread for the Thunderbolt. Thanks to a leaked Android 2.3 build that just popped up for the Thunderbolt though, we at least know that they are continuing to work on the update. While we have no idea if this is the official build or not, it is flashable to everyone including non-rooted users. Read more how to install 2.3 ON HTC TB:

Gingerbread RUU 2.11.605.2 for HTC Thunderbolt Leaks