Has Sony taken a gamble by announcing release date of R2 so close to GOW2?

[libellule]

T help you a littler :

1-

90% of the R2 or G2 future owners ALREADY HAVE A PS3 OR A XBOX360
=
90% of the sales will not be linked to the success or the failure of their ocunter part...

2-

PS3 = 400$
Xbox360 = 300-200$

U dont hesitate between the 2 consoles ...

3-

Title will be in competition, that is sure but I doubt that sales will be determined by their relative "review" success ...