I found this when on the lego website browsing for new sets! But not very AFOL like.
Its is a track designer the only problem is that it is nowhere near as good as the one on railbricks available.
(The Link for it) With out further ado here it is...
The start Page:
The Layout: http://www.brickshelf.com/gallery/fuzzylegobricks12345/blah/picture_243.png
The Track (available pieces)
The Base Plates:
The save/load page:
And last but not least the Instructions, (example shown is flexible track)
Hope this helps you!
I would give it a 5/10 because the lack of pieces.
~Fuzzylegobricks
Sorry for the close imaging.