mine works just fine. 1.6.1 fixed all the call/sms issues for me.
all i did for it to work ok is:
- flash the new firmware
- wipe using old recovery
- flash the new recovery
- push the new update.zip and the firmware renamed as SAMSUNG.tar
- wipe using new recovery
- apply update.zip
- apply restore gapps
oh and before i pushed update.zip i deleted the old update file.
@mrbrdo - the first time i flashed from 1.5 to 1.6 it remembered my apps but after first reboot it forgot them.
i think it remembers the apps you had on 1.6 though.