We have started a discussion at http://usweatherradar.uservoice.com/ about the migration of the US Weather Radar gadget functionality to a webpage.
The idea is a (small) webpage which can be potentially opened as separate window which has the similar functionality like the iGoogle US Weather Radar (http://www.google.com/ig/directory?hl=en&type=gadgets&url=gmapsflighttracker.com/weather/radar/weather-radar.xml).
This way the US Weather Radar could be seen from every browser on desktop as well as on mobile phones.
What do you think? Head over to http://usweatherradar.uservoice.com/ and let us know. We are happy to hear about your ideas!