I just updated to WP 2.8 and it was fast and convenient. Why? Because those wonderful folks at WordPress have decided to add an update feature into the software itself. Not novel on desktop software, but really hard to do on websites.
Blogs often have their own software installed like themes and various plugins. They just get in the way and cause problems when updating a website. In this case, all I had to do was press upgrade and away it went.
Nice WordPress, very nice.