493
there are 493 Pokemon in existence.
well you can get every Pokemon on the game not catch all 493 but if you do enough trading you can get all 493 and all 493 can follow you for more info got to http://pokebomb.co.cc
there are no new Pokemon on heart gold there is still only 493
HeartGold & SoulSilver do not introduce any new Pokémon, so the current total of 493 still stands.
There is a patch for Pokemon Emerald with all the 1st, 2nd and 3rd pokemon. Nothing with all the 493 yet
No. 5th Generation Pokemon have not yet been confirmed. As far as I know, the maximum would be 493 different species.
You can buy the game Preloaded with all 493 Pokemon at: www.losttreasuresonline.com
there are 493 Pokemon
There are 493 unique Pokemon in all.
493 different ones, but for all in total... Unknown.
Pokemon HeartGold can communicate with all the DS Pokemon games. :c)