I checked out the link.....how many songs do you think this will come with.

That short list was pretty weak...I mean if that's 5% of the songs....than maybe it's a good start.....but I'd hope for 80-100 tracks.

This is how these types of games are advertised. They leak the song list a little at a time to keep interest in the game up to the release date. Rockband and Guitar Hero kind of set the standard here. Trust me, there will be a lot more songs shipped with the game. I'd be shocked if it didn't ship with at least 60-70 songs on disc. After that they will offer DLC. How many per week or month is still unknown at this time.