Microsoft already opened up the XBox 360 to recreational coders with XNA.

Now Nintendo is opening up the Wii with the WiiWare developer tool, with games to be made available for sale and download to Wii owners via Nintendo. More details in the Newsweek blog’s chat with Nintendo’s US president.

Meanwhile, Sean Howard is designing 300 little gameplay mechanics that people can steal and implement if they like. Neato.