WeMapr is an online tool that imports existing charts into Google Maps.
WeMapr was designed and built by Michael Saunby with the help of a few friends (see credits), to show how weather and climate predictions might be combined with RSS feeds for various uses.
A WeMapr mashup was featured in the presentation Climate Change Mashups at Web2forDev, Rome, September 2007. See my blog for reviews and read about the ideas behind WeMapr in the ICT Update Web2.0 special.
Take a look at some examples.