Joystiq has up one of the first videos of Guitar Hero III
, and links to an IGN article discussing the changes. As they point out, there are quite a few differences. The UI has been overhauled in several ways, which may or may not be to your liking. "The HUD has been completely revamped, with lights replacing the Star Power meter and a new chain counter that tells you how many notes you've hit in a row. According to this IGN feature, the timing has also been changed, which may explain the early Wyld Stallyns-level performance in the videos. It's hard to blame the team from Neversoft if the game's playing a little differently at the moment, as they didn't have access to the code (created by Harmonix) from the original two games. Besides, there's still time for tweaking."
The changes don't bother me that much, but the twanging butchery of "My Name is Jonas" made my eyebrow twitch.