*EDIT by popular request* For those having issues with ADB and uninstalling the old Facebook app: The easiest way I've found to remove the old facebook app is to use the fantastic (and free!) "Estrongs file explorer" from the app market. Open it up, press the "/" at the top left to view the root folder on your phone, scroll down and select the "system" folder, then the "app" folder, then long-press on "Facebook.apk" and select delete. Done. Then install the new facebook app.
Is there a good replacement for the stock Gallery? The Sense Gallery is simple and easy to use. The stock 2.2 Gallery, while looks good, is cumbersome to use for wanting to quickly to go an image folder to browse pictures.
Tried this today....Battery is just killed way too quickly, phone runs real hot. Per the thread at XDA they used the same kernel as the Nexus One, so may have to wait til they put the fix in for that.
Charge your battery all the way. Reboot into recovery. Wipe battery stats. Reboot. Let it drain till it shuts itself off. Charge it all the way and let it drain again. Your battery will improve. Cyanogen posted that over at xda.