The guys at nintendomax have started a homebrew creation contest for Wii.
The prizes include two Nintendo 3DS consoles and 150€ in cash.
You can use any programming language you want, so be sure to use the best one around :)
You can read all about the contest in English here (http://www.nintendomax.com/viewtopic.php?f=141&t=13021) and you can submit your entris until May 31st.