Will LaiR and Ninja Gaiden Sigma Boost sales of the Ps3 for this Summer?

[footbag]

Now MGS4 will sell PS3's but now it appears that it may come out on the 360 as well. http://www.deeko.com/news/?p=1448 Is Sony just giving up on the American market? Can Sony survive not being the dominant console in any market? We will find out.