The new Transformers Game is confirmed by GameStop to be
available on 06/12/07. I have one of their official release sheets
which tells the release dates of all X-Box 360 games for 07.
Also it includes info about there being two versions of the game.
Transformers $59.99
Transformers CE $69.99 ( Cybertron Edition )
The second game appears to be a special colectors edition version. The difference between the two games is yet to be known, but speculation is that it would come with a Unique TF
figure. Not unlike the upcoming Halo game which has 3 versions.
Pretty sure the game's been in development for at least a year, so I'm pretty sure it's not being rushed or anything so there shouldn't be any problems come it's release.