iPhone users; you probably know there are free apps and there are paid apps on the iTunes store. Sometimes, those paid apps can become free though usually for a short period of time (like a day maybe) when the publisher feels somewhat generous or they'd like to promote their product by viral marketing.
So how do we know and keep tab on when any of the thousands of apps out there suddenly become free? Unfortunately no, there's no app for that but we can always refer to the Free App Alert website which diligently search and update previously paid apps that suddenly became free, daily.
No more scrolling through hundreds of different apps just to find that limited time only, free iPhone app. Now you can bookmark this Free App Alert website, subscribe to e-mail, RSS, Twitter and even Facebook. Unfortunately this doesn't work with Nokia phones, especially N97 or E72 :)