Oh, I could find uses for it, especially if it presents as a usb midi device[1]. And I'm sure it can be used for some fun things and actually have a place in a live set. It just feels like a toy, rather than a serious bit of music kit for musicians (even if it has been used by serious ones, however anything can be used by musicians :P)
[1] Actually, if it did, that would get me a lot more excited by it!
As an ex-DJ I could definitely find use in something like this. The core music program has to be good, but a complimentary keyboard like this one would certainly enhance the experience -- especially for live Performances.