I found 2 apps that can do that. The first one is fastwiki, which is very good, but it doesn't have images on wiki pages and they are a little messy with the quotes and images, they don't show it properly and the page doesn't have a clean aspect.
The other one is Leo's wikipedia reader, but i couldn't manage to create the wiki file.
Both of them comes with a xml converter to create the wiki file that the app will read. This allows me to view any wiki, not just wikipedia.
Please, if you know a wiki reader like those that's better, post here. Or if you know how to convert leo's file post them here.