As of about 8:15 this morning, Ubuntu — the Linux distribution that has taken the desktop world by storm — has released version 8.04 "Hardy Heron" to a flurry of cheers, frantic downloads, and — we suspect — sighs of relief from all involved. Though the GNOME-based Ubuntu has a tendency to steal the spotlight, the party also includes the KDE-based Kubuntu, Xfce-based Xubuntu, and education-focused Edubuntu.