Badapedia allows you to easily search for Wikipedia pages and read them in this app. You can define in which language Wikipedia pages should be loaded.
On the first three days this app was downloaded amazing 11,378 times!
2012-02-01: After two years and over 230,000 downloads Samsung suspended Badapedia from the app store! Why? Because it doesn't work with Bada 2 as they told me. They didn't tell me any details. Since there is no Bada 2 for the Wave 1 this doesn't make much sense to me.