Microsoft will not show Windows 7 to PDC attendees until Oct ‘28. But new info about what’s part of the pre-beta build that’ll be provided to show-goers is beginning to trickle out. According to a sources, the build that will be one of the M3 (Milestone 3) builds. So what’s in this soon-to-be-delivered Windows 7 pre-beta build? Here are a few new features:

• Device Stage – is a new way for consumers to manage, explore, sync, print to, or do other common device-related tasks. (I wonder: Is this more than souped-up Plug and Play?
• Action Center — a self-diagnosis feature to help users troubleshoot problems with their Windows 7 systems
• StreamOn — a way to control audio/video content on PCs and devices
• A new animation framework for customizing animations
• New task bar and shell integration
• Multi-touch and gesture recognition — something Microsoft showed off earlier this year in an early Windows 7 preview
• Improved Bluetooth support Not clear if this goes beyond the new level of Bluetooth support Microsoft is adding via Vista Service Pack 2
• Ribbons, ribbons everywhere. As was evident in the leaked September M3 build, Microsoft is adding its Ribbon UI to the applets that are part of Windows 7.