for the record, the samsung galaxy s will do it (NTSC) via the nokia 3.5mm -> 3x RCA cable, but the output isn't perfect - although i've heard of others getting perfect results, my phone has a pretty noticeable hum going on when video out is enabled so the RCA audio quality is very, very poor. regular audio (ie, 3.5mm with the tv-out option switched off) sounds great though.
the next round of phones (like the sgs 2) will come with hdmi outputs via microusb so my plan is to grab one of them and downgrade the output to composite before i plug it into my tuner...
as for google maps, i haven't had those sort of problems since the last big update a few months ago, but yes, it was very frustrating. i'm more annoyed when it makes up routes or sends you in loops for no reason though... i think you certainly get what you pay for, but in my case the price is right.