Open Office VBA compatibility is still a WIP (work in progress). They aren't 100% compatitible yet.

I really enjoy the new AJAX features. Some of them have been implemented in XBox homebrew applications and controlling a media center PC from the XBox.

If Google jumps on the AJAX bandwagon... GMail will be your storage for your files, many applications. They have Quake 3 built on Shockwave now... Why do you need anything newer than Windows 98 and a browser?