I was on holidays when new release of WordPress 2.5.1 came out. And I wanted to upgrade immediately from 2.5.0. to new version. But I haven’t got computer with me and had just mobile phone (Nokia N95) with its browser. Anyhow, I decided to try automatic upgrade from mobile. I took the huge risk (I thought). And… it worked fine. Everything was easy and went smoothly with upgrade.
Congratulations to WordPress team. That is really exceptional.