Anyhow, it's still just Windows NT. The kernel has improvments and new features, but a prettier Windows Explorer and XML-based everything doesn't really do anything for me. :-/
Hm. Have you used it ?
Even the Alpha currently "available" uses a "explorer" that's different then that of XP. Longhorn is going to "break" more drivers and programs then XP did, tho legacy compatebility (sp?) should improve.
Besides, XP standard theme is eyecandy only. With longhorn it's more user friendly. Even for an Alpha, I liked it, while I really dislike the 2000/XP interface.