Quite nice to see that Lego is continuing with their robotics kits. I had an excellent time with my Mindstorms set as a kid, although I inevitably got tired of only having three sensors to play with.
I do hope that it ships stock with an option more complex than drag-and-drop programming. I found myself resorting to some hacked-together version of C back then simply so I could use and store arbitrary variables, something that the RCX was capable of but was not included in the software.
I'd have killed for a distance sensor...