I tried Slacker on the 3G network for the first time tonight, for what turned out to be about an hour drive. Held up real well, SQ was great, and there were no hiccups whatsoever. I actually got a call in the middle of the session, and when it disconnected it went right back to playing the song on Slacker. I was monkeying with the EQ settings on the stereo itself to get the right sound, but I just set it to mid-range on Treble and Bass and it sounded good. Very impressed, overall. :ter: