For all you folks who want Picasa sync, and abilty to view photospheres, I made a flashable zip and an addon.d script for this. It uses the stock GalleryGoogle.apk.
I own a grouper, not a tilapia, so if someone could please verify this works, that would be great. I don't see any reason it wouldn't, but I would like to be sure
|4.2.1, nexus 7 3g, tilapia|