I’m checking out Wimp as a substitute to Spotify. My Wimp stopped working yesterday and refused to start because of ‘wrong ELF’. It turned out my Adobe air installation somehow was in 32bit, I don’t know how/why it initially worked (though 32bit apps usually work fine on 64bit Ubuntu thanks to 32bit libs) .
Anyway I came over a 64bit compiled Adobe Air package at launchpad, it installed fine and I could reinstall Wimp again.