Wikipedia addicts are in for a real treat. The world’s favorite online encyclopedia is now available on the iPhone thanks to two new downloadable apps named iWik and Kiwi. Complete with optimized features like search, activity tracker, sending email links to friends, landscape viewing option, page marking, and page saving options, the app allows Wiki regulars to stay informed on the go. The best part is that the app allows users to view Wikipedia in a format especially optimized for view on the iPhone. Attractively priced at $0.99 and $2.99 respectively, iWik and Kiwi have got to be the most useful app that made their way through to the App Store in a long while now!