Vicarious Visions' Karthik Bala has once again confirmed paid downloadable content in the Wii version of Guitar Hero World Tour, though current Wii guitar games have left us doubtful of any feature. Furthermore, you'll be able to save your songs to a "Rock Archive" on an SD card, and even play songs from the card without copying them over first. But ... but isn't that completely impossible?
Bala also confirmed that despite the new guitar's wacky gimmickry, your old Guitar Hero III (or Guitar Hero: Aerosmith) guitar will work just fine, and that "any USB microphone should work." With all these features, Vicarious Visions is going to have to be really creative if they want to disappoint us.