Money Lenny...money...the 360 is a pretty good market to throw games into especially since they put Morrowind on the Xbox they fgure if they put Oblivion on the 360 itll make alot of sales.
And yes praise modders because there are sooo many in development i think there were over 300 mods just for morrowind not including the Expansions.
One that caught my eyes was a way to make Oblivion look futuristic tho...its a total conversion mod and it looks pretty cool since it keeps the system and races.