Windows 7; this will be released by January 2010

Microsoft fixed a deadline for the next version of Windows, it will be January 2010, if nothing comes along to disturb this agenda.
According to Steve Ballmer, this system will remain closer to Vista than Vista was to XP. However, there should be a radically change in its programming; certainly this is what customers hoped for with the current version.
By that time, Apple should have already released Snow Leopard and should be working with ongoing improvements of its OS; based on the sound foundations of the OS this should bring a batch of innovations on the side of the user interface.
Will these innovations be sufficient for to call it Mac OS XI? It will be certainly the focus of Apple to keep ahead of its eternal competitor as it continues its gradual increase of market share.