1) conversations, one handed operation/typing

2) Voice calls

3) Proper media player with proper codec support. Fix network playing of files, allow seeking per X minute intervals (a la PS3)

4) Samba/FTP support, so the phone can appear as another computer in my homegroup or local network

5)USSD/Video Call (SIP/Skype and Cellular), MMS

6)Contacts grouping

7) Option to export to single VCF file for backup/restoring

8) Voipbuster support natively, so I don't have to go through generic SIP and then disable a certain service/file.