TESLANAUT  Build a social network around this App/Game so people can share tunes together or play against eachother over the network. Also, an iPhone app/game would be awesome. Landscape play of course. Showing number counters at the top at when the note comes and then as it gets closer, you will see the bar coming. Charge 99 cents for the iPhone app/game and allow people to buy song packs.

Just a suggestion and hope.  
(Version 0.7)

DIORDNA  It's like Guitar Hero for a keyboard. It's Keytar Hero! Awesome! Now if only it had popular rock songs too...  
(Version 0.6.3)

LRKIRSCH  Very nice, helpful, and fun. Thanks so much! Looking forward to more releases.  
(Version 0.6.1)

PIZZACAKE  Synthesia has a great looking full screen user interface. I found the included midi files way too hard to play. I'm not exactly sure how the app scores you however, is the percentage based solely on hitting the note at the right time or does it take into consideration the duration of the note?

Does anyone know of any resources on the net for beginner level midi files to play piano, thanks.  
(Version 0.6)