I have option 666 (PCM cell phone) on my 997. It is awesome. However, I live in SF Bay area and GSM coverage sucks - at least for Cingular. Even the 8w power boost for the 666 does not always help. Has anyone ever tried another GSM carrier in SF Bay area? (it seems that many on this board are in the Bay area). I have other Cingular phone (and a Mercedes built-in) and they stink too.