So there is a new KUbuntu version with KDE 4.0.3 and Ubuntu 8.
It is very nice , it is user friendly and looks good. Definetely it might be the future
But still i encourage errors like SIGDEV in some applications, it is not so stable.
And works slow running it on VirtualBox. I suppose it is VB problem. Anyway when I set Redmond theme it works very fast, i think even faster than Windows , cute
Still this is not stable. So I have to try regular Ubuntu with Gnome ..