The Gillmor Gang — Robert Scoble, Phil Windley, Kevin Marks, and Steve Gillmor — celebrated the news that apps are moving past web sites as the default architecture of the planet. I say celebrate because I think the trend is one that will continue, and even accelerate, as iOS notifications make interoperation between apps more useful. In the process, as @windley notes, notifications and the processes that are triggered, become the focal point of what used to be known as the operating system.
What that means for Windows is cloudy at the moment, pun intended. Though many analysts suggest Windows Phone 7 will gain significant penetration alongside iOS and Android, it will only be possible should important apps drive that adoption. @scobleizer is dubious, and @kevinmarks suggests the locus of power in notification has moved away from OS to Facebook and Twitter. @stevegillmor has his money on @mentions, where social and Web meet in a native wrapper too tasty to ignore.