A while back Movierec and Movie Maker appeared, offering video recording. I've played briefly with the latter and it works. No sound though due to the lack of microphone. The Zire 72 should do it though.
Then today I saw this. A shareware webcam program. I've given it a try and it works. Unfortunately it managed to blue-screen my PC, but I'll let it off as it's new software.
So the number of uses for my Zire keeps growing. I mainly use it as a calendar and address book, but it does a great job as MP3/OGG player and e-book when I'm travelling. I just bought some lovely Sennheiser PX200 headphones. They fold up quite small and sound good to me, with better sound isolation than the crappy earbuds I was using before. I'll report on them when I've had more time with them.