I don't think it was difficult at all. In fact the Xbox hardware enabled the Kameo team to better realize their ambitions. MS sent over dev kits in Sep ‘02, and I believe Rare had a version working on the Xbox in just 4 weeks. It was incredible in terms of how fast the team became acclimated to the Xbox architecture. Also, I wouldn't say it's a translation. Much of the game has been developed since Sep ‘02. The most recent milestone that I reviewed was incredible. It was amazing to look back even to as recent as E3 to see the differences from where the game once was. The team has been very aggressive in refining the game mechanics and you'll see what I mean hopefully soon.