I posted this in the version .58 build thread also, but it applies here as well...
When using WebPlay with the new Gizmo app from the Android Marketplace, I can't play large playlists. When I select a playlist with 1209 files, it just opens the Gizmo and shows me the opening screen, "Play your home media anywhere" and the "Browse Library" button below, which when clicked, just takes me to the screen requiring me to enter my key, then takes me back to the select screen. the media never plays. if I select a playlist with 549 files it pauses about 3 or 4 seconds, then shows the cover art and the music plays.
When I then select a playlist with 849 files, it opens the Gizmo, but shows the cover art from the previously playing track, but no music plays and I have the "browse Library" button again, and no media plays.
it seems webremote works fine with the 1209 file playlist now; but it seems I was having issues with it earlier, but perhaps before this most recent version.