Got bored, so did a quick Q & A for this...
Can I pirate DLC?
No.
What is this?
It is a tool that will allow you to play custom songs on an unmodified Wii using Rock Band 2 and an SD Card 2 Gigabytes or less (or 4 Gigs if it is non-SDHC).
What about Rock Band 1?
There is an import option in the installer that will search for .ARK files to extract from, it may even eventually search ISOs.
Track Packs?
Yes, those will work too.
Do they work online?
Yes. Now you can finally have the "true" Rock Band experience while playing customs.
Something's got to give.
While there are some issues here and there that I've noticed, for the most part, there are NO catches. It works great.
"Some issues?"
Yes, the camera is static for the whole song (meaning it is at the same angle). This means that you will either see the entire band or one member for the entire song. Whammying will also not provide you with a different guitar sound (although you expected that, right?)
How long will it take?
The PC installer will vary depending on your hardware and the length of the song (because we know you all are clamoring to put Stairway to Heaven in...), but from what I've noticed the Wii installer runs very quickly (and also has a really nice GUI).
How much space do the RB1 songs take?
1.01 GB on an SD Card.
Aww, I can't dump the disc.
I think (aka 99% sure) Aaron is working on a tool to extract the .ARK to the SD Card from the disc itself, using the Wii.
This sucks, I'm going to go to GH3 to play custom GH songs.
Guess what? Those songs will work with RawkSD. So get away from the name brand and come and play the game.
What about GHWT songs?
Oddly enough, the option is there, but because of file formats and such, I doubt it will do anything for a while.
Holy crap, why are there so many solo sections in this when there shouldn't be solo sections?
You are using a GH mid. Star Power sections in GH are recognized as solo sections in RB.
Release date?
When it's ready...