My cousin tells me they have almost 500 pokemon now, lol. I lost track after 310 (which would have been the second wave). Apparently there are two new games called Diamond and Pearl.
I remember when I always used to use Pokemon Yellow. I was only 7 away from having 150 available in that game, and then lost it. I was so disappointed, as I seriously would have completed everything I could have in the game. I still have Red and Crystal, but I don't an attention long enough for Red, and Crystal has so much more to do. I still like to play my gameboy every once in a while though, so I'll plop in a pokemon game and make minor progress.