Hatena Star is being integrated into Sudomemo! It will be completely separate from the Sudomemo star system, but will allow for commenting on Flipnotes from the desktop website.
The desktop site has also had some changes to make it more friendly and interactive. Keep checking up on it! http://www.sudomemo.net
Perhaps I can make the DSi fetch comments from Hatena Star as well; but don't get your hopes up. Most likely, the Hatena system will be completely isolated from Sudomemo.
I also don't know if I will be able to credit creators with stars to their Hatena accounts; currently stars just go to mine (I'm not complaining :P). I've sent a tweet to Hatena asking about perhaps getting user blog tokens so I can credit users with those: https://twitter.com/Sudomemo/status/567196260965552128