[elmariachi]

Try Conduits Pocket Player. Its a little expensive (s2play is free...) but the features are awesome. Very thumb friendly, the library is tits, shows cover art full screen, it even does "shoutcast" streaming radio. I hook my touch up to my car and listen to streaming radio all the time, its awesome. Also has a graphic EQ. S2Play is just to jittery and unresponsive and SLOW for me, it doesnt have enough features.