Florian Amrhein : Wapedia

Having started in August 2004, Wapedia brings the contents of Wikipedia to mobile devices like mobile phones and PDAs. It offers the recent version of every article, which is done by using a combination of a proxy-like behavior and a local article database. This combination provides fast speed and up-to-date articles on the one hand, and a low load and low traffic for the Wikipedia servers on the other hand.

Features:

long pages are divided into smaller chunks to fit into the small displays of mobile phones.
images are scaled down to the resolution of the mobile device.
own fast search engine, independent from Wikipedia servers
supports WML and modern XHTML Mobile formats, with an autodetection of the best format for each device
more than 140 languages
delivery of recent versions of articles
a local article database provides full service and high speed, even if the Wikipedia servers don't respond or aren't fast enough
users can configure the size of images and other options like the size of the start page.

Address: http://wapedia.mobi