Here are 2 from a coworker of mine...(I'm rejecting for now)
1. WiFi scans every 20 seconds or so looking for a new connection. They took away the box you could check to stop it from scanning. You have to use a toggle widget now and shut it off when you leave known WiFi connections you use. PITA if you forget, and a battery drainer. Don't know if it will automatically connect when he gets home or not.
2. Camera: Geocaching on/off option appears to be gone? That said, is it off, or is it on? Hopefully they simply got rid of it since there are a lot of creepers (both sexes) out there.
Those are the only 2 myself and my coworker have found on his, but I only had 15 minutes to check it out.