I made a small and unintentional contribution to the Notes roadshow just now. John, Paul, and Greg are currently in Washington, D. C. giving a demo; I'm at home, working away on some papers when my phone rings. I can see from the Caller ID that it's from Microsoft, and it turns out to be Paul.
Paul was talking to me through his Thinkpad latpop, having clicked on my contact info in Outlook to link up via a PSTN gateway (he was surprised to have me actually pick up since he wasn't expecting the gateway to be live, but we rolled with the mutual surprise). There was a weird sort of lag where I could hear my voice being replayed in the background, but it wasn't too bad, considering how really cool the whole thing was. Open your laptop, click on a contact, be talking to them even though they're using a POTS line.
If you have a Lotus Notes deployment and are interested in getting the most out of it in conjunction with Windows and Office, you really need to see this event. I think you'll find at least one cool and valuable thing to take away from it, and knowing the guys at the office like I do, you'll find more than one. And if your surprise live demo person says that, you know it has to be true.