First up, you're going to be able to stream extra songs straight from an SD card of up to 32GB, without having to transfer the tunes to the Wii's rather measly 512MB on board storage as previously.
Although this won't rival the huge hard drive capacity on PS3s and 360s, it'll certainly make it easier for Wii rockers to enjoy the downloadable tracks the game has to offer. Let's hope this feature becomes available for other games as well.
Elsewhere, there's also going to be an exclusive party mode, which will allow players to link up to two DS handhelds and play with two big screen players in a game called "Roadie Battle".
It will involve each person (or one person and a CPU) taking the side of one Wii player each, and trying to sabotage the instruments of the competitor. If successful, the "roadie" of the effected Wii player will have to fix the instruments quickly to ensure the player's gameplay isn't interrupted.
This is the first time we've seen a Nintendo Wii and DS link up in a big game, and hopefully a feature that is exploited more in the future.
So far, we like the way Nintendo is going with Guitar Hero 5, and long may it continue in other games. Be sure to check out our hands-on video with the fifth installment in the Guitar Hero franchise (albeit the Xbox 360 version), and let us know what you think to the Wii additions below.