I hav taken some exciting point from this source

Every PDC attendee will receive a 160GB external USB hard drive packed full of all the bits we’re distributing at the event. Yes, that’s right – the DVD package was just getting too unwieldy to be able to effectively distribute all the SDKs, binaries, whitepapers etc. that we want to hand out. Much of this content will be exclusive to the PDC – we just can’t distribute this quantity of content any other way.

Among other things, we’ll be running compatibility labs at the PDC so you can bring your application and test it on Windows 7 builds. Don’t you want to make sure you’re ahead of the curve and, indeed, take advantage of some major new innovations?”

gr8 Hows lucky PDC Attendees !

Ankur Mittal wrote Hmm cool it seems that MS would be giving Windows 7 beta in these hard discs

ya buddy u r right

At this year’s PDC, keynote attendees will be among the first to receive the pre-beta build of Windows 7.  Additionally, attendees will have the opportunity to attend 21 different sessions that drill down into the details of developing for Windows 7. source: here

They will get Beta disk tooooo.....