Boris Conforty has WikiLinks (iTunes Link) for the iPhone, iPod Touch, and iPad in the iTunes App Store for FREE (regularly $3.99) for a limited time.

WikiLinks is the easiest way to browse through knowledge. It brings a new and entertaining multi-touch experience to Wikipedia browsing!

WikiLinks is easy to use but very powerful.
It is powered by the content of Wikipedia, Wiktionary, YouTube and Web Search.

WikiLinks can become your hub for online search on all Apple iOS portable devices (iPad, iPhone and iPod touch).