Thanks for the FYI Toby.
I'm 99% sure Aaron's source needs to be made public, although its unlikely he'll change anything but the logos and artwork (unless he's a Qt developer).
A big hurray for the LMMS project. I'm excited. I'd be interested to see what look and feel changes are kicked back to the community (wink wink). With GPL code, it's often commercial use benefits the project as a whole.