I’m a long-time Notes user – even before I worked for IBM, my previous company used Notes, so I think I’ve been through from around version 4.5 to 8 now (and I really should get around to installing 8.5!). I’m not going to be a fanboy about it, but I have to say that it’s getting better all the time… and the fact that we have folks like Mary Beth Raven actually discussing the application design choices on her blog, and interacting with users as she does so, has clearly improved things.
Nevertheless, I was both surprised and pleased to hear that David uses Notes as part of his GTD process. I’m curious as to how he does so! By the way, he’s on Twitter, too.