They're obviously holding back any new IPs for the next generation, besides they already have great 3rd party support (the vast majority of the 360's biggest selling games are 3rd party titles, both exclusives and multiplatform, much like the PS2's was last gen.)
On 2/24/13, MB1025 said:
You know I was always wondering why no one ever used the dollar sign for $ony, but then I realized they have no money so it would be pointless.