Htc Legend's default player is not supported on android 2.1 (probably neither on 2.2) You can maybe reuse some code from the Scrobble Droid app (or how its called) Your app is great though :)

Hi, have you followed all the steps in the FAQ?: http://code.google.com/p/a-simple-lastfm-scrobbler/wiki/FAQ

If you have, could you try some of the known supported players, such as Zimly or 3 (cubed) and see if that works?

If HTC Legend uses the Sense UI it should work, as it works on HTC Desire.

Please get back to me.

Works perfectly on HTC Legend and the default built-in player Tested today, no problems occurred.

Works perfectly on android 2.2 htc legend stock !