PopCap has revealed via an arbitrary Facebook response comment of all things, that their acclaimed tower defense title Plants vs Zombies will be making its way onto the iPhone platform sometime later next month.

From the comment: PopCap Games: “Look out for PvZ iPhone late 01/10″

That’s it! Expect it to be in the app store by the end of January. PC’ers can get the title on Steam for a discounted $7.50 through Sunday, January 3.