It may in Europe a little, since Nintendo's set flexible pricing there, but not in the US.
Worse, I think the $249 pricpoint is going to mean Sony feels they have more breathing room for PSP2 and probably set a $299 price ($349 for whatever "value" bundle they'll allocate to 80% of units too).
I'm also afraid for Wii 2 pricing now. $299 seems likely if it's PS3-plus spec imo.