Spark version 2.0 is now out. It’s a proprietary app, available on Android Market for $1.50 (plus tax, if you live in California).
New features include support for the recent changes, as well as:
» New Xbox-y application theme
» Proper treatment of Free and Gold accounts (Free accounts can’t send messages)
» Box art for each game, instead of an icon
» Game website launching – long-press on a game to open its site
» Faster profile update
» Faster message sending
» Faster friend request management (adding, removing, etc.)
» More tolerant parser (many errors are no longer fatal, and will merely omit the missing information)