I can't really see this as a bad thing. At least Disney will continue the franchise... Lucas, on the other hand, didn't seem to have too many ideas of what to do with the franchise after Clone Wars finishes (which probably will be soon enough). Disney has done an excellent job with their Star Wars things in the past, and I can't see them doing any less with it now.
I am kind of curious where this puts the "live action series" that has been floating around in limbo for ages. The status of the series seemed to constantly change-- first it was going to happen, then it wasn't, then it was again, then it wasn't again, and last I saw it was back in the going-to-happen state. With Disney I wonder where it stands now?
But someone on the RL forum did bring up a good question... Does this make Princess Leia a "Disney Princess"?

...And will my dreams of a Star Wars Land being added to Disney World/Land finally come true? If so, will they rent me an apartment in that land?