6.20 FW.. Chances are all the old decrypt methods are long gone by this point, so I won't bother with it too much. Yoshihiro or someone might develop a decrypter as good games come around.
If they were to incorporate some kind of Game Cube emulation in the system, they could nearly emulate a Wii as the hardware specs share similarities. Homebrew possibilities would be something else if this is true.
Nirvana's Nevermind album is very easy to learn and is in standard tuning for the most part. Same with In Utero album but you'd have to tune a half step down to drop C#. Deftones songs are almost all bar chords in D or C# as well.
Edit - If you need a good tab site, google Ultimate Guitar.
That game is probably better than 2/3rds of the shovelware produced on a DS. That reminds me when I was in basic training in the army about 4 years ago, they had us start M16 training with a MACS game for SNES. Unfortunately, this isn't a joke.
(you forgot the Z in gizmodo btw)
It's really not hard to do. I just soldered the leg off and pried it with a knife and glued the shell back on. Takes 15 minutes tops if your iron is heated up.