Not sure since when but all of the below stopped working not so long time ago:

• Facebook chat: can't get online, keeps popping with password prompt despite proper password provided
• Facebook concatacts sync: I guess related to the one above
• Google talk: can't get online, says incorrect password while for the same account email sync works well
• AccuWather: doesn't search for any location, doesn't fetch weather data

My assumption is that public APIs of the above services have been disabled or changed. I would like to confirm that and know if there are any solutions or it's rather time to get android device