This just in from PopCap's Twitter page:

Apologies for the lack of updates regarding PvZ iPhone. The game has been further delayed, but we are *confident* it will launch in mid-Feb.

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"PvZ," for the uninitiated, refers to the video game company's "Plants vs. Zombies" game, to which I've surrendered more nights' sleep than I care to admit. 

>>Read my earlier review of the Plants vs. Zombies and other garden themed video games