Calendar Software: Airset
Joel on Software: "One online calendar I neglected to check out is Airset. Thanks to a couple of alert readers who emailed me, I tried it out tonight. It's much, much better than the proof-of-conceptware that people are hyperventilating about. In fact, it's the first online calendar I've found that seems like it might work for me."
I have taken a quick look ( yes, you do have to register) and it looks good. I need to see what it can do with my Pocket PC