September 2014
It's a 30% cut what Valve takes.
And I'm sorry for all the Steam fanboys but, no, it won't come to Steam.
September 2014
Origin isn't totally **bleep** anymore. Overall it runs fine and even the Store is accessible these days without loading for 30 minutes xD
I've got games on Steam, games on Origin and games through Battle.net. Just ask friends you play with on Steam if they also have Origin / Battle.net accounts so you can play with the same persons over there too if they feel like it.
If you don't want to buy PvZ:GW because you have to install Origin then it's your loss for a great game here :P
November 2017
I really do not know if there is a steam version for this.. I prefer to just download the original version. thank you very much