I am thinking of picking up some kind of BT device. The 2 that i found so far us the freedom keychain and the BT 359. Any feedback on them? So far i am leaning towards the keychain...well, b/c it's on a keychain and i always have my keys with me and my phone.

Also I love the new My location in google maps and know it will work fine together. However, i am looking for some kind of turn by turn voice (audio) directions similar to the garmin and tom tom. TeleNav has come up but if i'm gonna pay $9.99/mo then i am thinking of just picking up a garmin nuvi.

FEEDBACK WANTED.