1. hangs sometimes
2. go to message-->settings-->handwriting 100% reproducible hang
3. click on add call at the time u r in a call-->device will mute automatically
4. click on keypad when a call is running-->no option to backspace if u write something wrong or cant able to call.
5. call recorder not supported only your voice will get recorded.
6. during call u cant open i)camera ii)playing songs iii)playing video which is supported on lower end S60 nokia devices its strange.
I was a hardcore nokia user.but i thought android is better and i bought galaxy note.but this type of problems made to to think i was wrong..