If you think these two have nothing to do with each other think again, Ubuntu run on Xperia X1.
Fatsal, a xda-developers forum member, made this possible and here is one of his screenshots to prove it. Head over this thread to read all about it.
It still on very early (and buggy) stage, but I think this is a beginning of something great, mobuntu (mobile ubuntu) maybe? :)

Ubuntu on Xperia

keyword : ubuntu, xperia, mobile ubuntu, mobuntu
source : xda-developers