Looks neat but this definitely has very little to do with logo. Logo was basically a kid friendly interface sitting on top of a very Lisp like language, this is much more like @dustmop says, Game Maker or Klik & Play.
The point is not that it is a successor to Logo, but that it attempts to reach the same goals as Logo. In playing with it on the Xbox, the programming seems more like Scratch than Logo.
On a side note, does anyone have a link to the PC version? The Kodu site states that it runs on Xbox or PC, but I can only find the Xbox version.
