If you’re looking to make a conscience effort to not spend any money today, you may want to consider downloading Tweet Defense. For today only (July 11, 2010) Tweet Defense is free for the iPhone, iPod Touch and iPad. The iPad version has upscaled HD graphics. Best to grab it now and not regret it later.

Twitter and tweeting isn’t so useless anymore. You can use it to save yourself from the undead menace! Yes, zombies are back again. (They’re both tireless and overworked.) This time, the only way to protect yourself is to get out your iPhone or iPod Touch, pay 99¢ and pick up your copy of Tweet Defense.

Tweet Defense uses your Twitter stats and information to help you fight off a zombie army…