There are almost as many Wikipedia-based apps as there are articles in Wikipedia. Okay, that's an exaggeration, but there are tons of apps that help put everyone's favorite online source of data in your pocket. While you could read Wikipedia’s article on apps, we think our article is much better [need citation].
Considering the mobile web-browsing prowess of the iPad, apps that largely reinterpret existing websites must improve upon the original experience to warrant a download (or purchase). Wikipanion is luckily one of those apps -- much as it was on iPhone -- as the simple interface sorts through the Wikipedia database and presents entries in a very handy, easy-to-read format that skims out the filler.