Sony has officially announced that the tower defense title Plants vs. Zombies will be making its way to the PlayStation Vita. Their official statement on Twitter reads "Surprise! Plants vs Zombies is coming to PS Vita."
This version will include leaderboards that are Vita-specific as well as 'optional' touch control capabilities, but it sounds as though this version of the game will be almost identical to the console version.
No word on when this title will be released, but our guess is that it will be pretty close to the release of the PlayStation Vita handheld's in February 2012.