I now have alert channels being pulled up. So far I have only done the weather related channels, next comes motion, etc. I ended up going with whole channels for each alert. Originally I had planned on one alert channel with separate widgets for each alert. That plan wasn't a great idea and this one gives me more flexibility anyway.
Next up, I think I have the concept in flash down pretty easy to call URLs so my Chumby can act as a simple one-way terminal to the house. However, I'm finding myself much more interested in setting up a persistent XML connection from flash to Misterhouse for temps, etc.