Not sure if we have an official list of known issues but there are a few annoying little bugs I've found when using the Desire: - In the People app:- You can choose which contacts you want displayed in your main contacts list, you can select from phone, facebook etc by ticking the boxes but after a day the phone always reverts back to displaying just the phone contacts. They're still linked to their facebook accounts so it's not a problem but still a bug. Once you have a phone and facebook account linked you can choose the display name to be the entry in the phone contact or their facebook name. Again, after a day or so the phone forgets your preference. If someone updates their facebook profile pic this doesn't filter into the People app. the only way to fix this at the moment is to delete your facebook account from the phone then set it up again. the phone still remembers the linked accounts though when you do this. In the Browser:- The phone always forgets your preference for having your bookmarks listed in any other order other than newest first.