These days, it’s almost standard to see a one-click root method for a phone soon follow the “down and dirty” method that must be found before creating this sort of utility. The Xperia X10 Mini and Mini Pro have already been rooted, but if you haven’t been too confident on trying it for yourself, then perhaps their one-click method will be of interest.
It’s similar to the EasyRoot method for the Motorola Droid and Droid X handsets: you install an APK, you click a button, and you’re done. Quite simple, but depending on what firmware you have installed the app may not actually root your device. Fret not, though, as there are a few different downloads to choose from that should get you going. Head over to enthusiast blog Xperia X10 to learn more.