"Users of Pocket PCs, Smartphones and Java-enabled mobile phones running web brosers can now access a lightweight version of the Wikipedia on-line encyclopaedia. New Zealand-based company Instinct has created a mobile version of Wikipedia for mobile devices, currently available as a beta website. With over 1,025,291 entries itís got pretty much everything users could want to know about, from mercantilism to New Zealand history to Fraggle Rock."
I'm a bit skeptical of these since I could make an entry for brain surgery techniques and by the way I'm no brain surgeon. In light of that though it is free so what the heck, check it out.