It would be awesome. PDC has a lot of value in meeting other proffesionals. If you only go for the sessions you are missing out on so much.
I agree with CKurt! I have been in the past 3 PDC (2005, 2008, 2009) and every conference is worthy to attend in person. No just for the sessions but the chance to interact with MS people directly and other developers from different industries.
For PDC10, I do wonder why MS only have it for only 2 days... What kind of content and announcement can be pack within these 2 days will be interesting to see. Windows Phone 7development? Something to do with slate device development? or even Windows
8 announcement perhaps?