I picked up Solatorobo when it was released in Sept. In Oct/Nov I was about 1/3-1/2 the way through, and I haven't played it since. However I'm still working on Skyward Sword so that might not mean too much. I enjoy the characters, atmosphere, and story, but the game is too easy. So easy in fact that I got bored with it at times. I definitely plan on beating it, and I think it's worth the low price. Hopefully it still comes bundled with the music CD.
What do you mean pre-order for Radiant Historia? Wasn't it released a year ago on the DS? I picked it up in the fall under one of amazon's buy 2 get 1 free deals. Unfortunately it wasn't bundled with the music CD.