Readdle started developing iOS apps three years ago as of yesterday, and to celebrate they are discounting all of their apps (a rare occurrence for them) and offering up three iPads in a giveaway for Twitter followers of the company. More details can be found here.
For you math students out there you may realize that three years of app development on iOS means Readdle actually provided a document reader app before the App Store opened. Their apps are quite awesome, although they sometimes suffer from too many features (if simplicity is your thing). When we reviewed Scanner Pro, for example, the UI was a little overwhelming for TJ. Still, Readdle Docs is one of the best document viewers out there, and Flash Drive offers up some nice features like ZIP compression support. We reviewed BookReader here.
All of these apps (and more) are on sale for just $.99 until later today. For more info on the iPad giveaway, check Readdle's page here.