Well, I've been gone for a while and in my absence it seems we have a new resident retard on board - Jaded God.
So far its actually been pretty good as far as sales has gone. Reviews for the most part has also been great! I also doubt that Microsoft bought this EXCLUSIVE title just to see it die at part 2. It would take a catostrophic sales report to keep part 3 from appearing.
BTW, I've played both versions I can tell you that there isn't really any differences. Aside from better load times, cleaner textures, some neat filters, and the inclusion of Shenmue the Movie, its the same game. For me it was worth buying, even its just for the rock solid frame rate and sharper graphics. There are other subtle differneces such as Ryo and his clothes look WAY better but gameplay-wise it is essentially the same.
If you haven't played it, you owe it to yourself to buy this game! The game is amazing and sublime and it completely improves on everything the first installment tried.