If you are lucky enough to be attending PDC, there are going to be lots of VSTO goodies for you to check out. There will be a lot of information on VSTO 2.0 including an entire day preconference on VSTO 2.0 (PRE10). In addition, PDC is the time to announce and show new products, so there will be an early build of VSTO 3.0 that works against Office 12. VSTO 3.0 will be described and demoed in session OFF417. You will see this early build of VSTO 3.0 in many of the talks and in addition, you can get your hands on it so to speak in the VSTO 3.0 hands on lab that will be available throughout the conference.
Be sure not to miss these events:
There are a number of sessions in the Office and SharePoint track with VSTO 3.0 information and demos. These include:
Also, check out these sessions on future technologies for application customization: