My goodness! Some people, like GoldVsRed, need to use spoiler tags! The game has been out for less than a week! Some of us, like those with full-time jobs, haven't even made it to the 2nd gym yet!
Anyway, this game is 100% Pokemon. It's just sleeker. I like that they really seemed to have listened to the fans this time. HMs are still there, but they are a much more manageable number this time. The battle system stayed the same, but they made the battles much more graphic-centric and much less text-centric. The end result is that battles play out about 3 times faster. There are still 8 gym leaders, but there are a few tricks thrown in. Also, just like in Red and Green/Blue, you are supposed to focus on the pokemon of that game. Trading with others seems much more important this time around, for whatever reason.
Anyway, I am loving it, and as one of the mods said, I feel like I'm playing the best pokemon game ever made. You all have a lot to look forward to.