Well I'm almost positive that the people's widget is from the New Launcher Pro +. He has designed a scrollable widget last I heard. (Edit. turns out that it's called mecontacts in the market and free. Never heard of it before though)
I've seen that calendar widget somewhere, Only thing I remember is that he is probably using a transparent background but that doesn't tell you what widget that is though.
I know I saw it when I was searching through the show me your homescreen threads on various forums. Different people have used it, and answered questions about it in their posts.
Unfortunately I don't have a phone as of now, so I didn't remember the name.
I know I usually keep up with EVO show your screens forums, I think there is a general Android one that I check, and on XDA I think I keep up with the Captivate/Vibrate and the general Android show your homescreen forums.
So......all you have to do is check those few forums and you should easily find it
Honestly though, sorry I couldn't be more specific
