I'm sure the games are coming people, but I'm also sure that Nintendo wanted to get the Wii in as many homes as possible before Christmas and gambled upon consumers being willing to wait for the good stuff after getting a taste. So far, I think they've done quite well, especially with the recent release of both the Forecast and Internet channels, which have done much to help satiate our need to see if Nintendo was truly dedicated to the promised options that often get shelved in many circumstances.
As someone above said... Give them time people. The best games often take between 6 and 12 months to begin appearing on any console because the developers want to get it right as well as see what aspects the market is and isn't looking for in a game. Example being the RAM expansion pack for the N64 when consumers complained of poor frame rates and below par visuals.