This is a small iOS app (iPad / iPhone) app I worked on that basically shows weather on a map (along with day/night info). Just something I made to quickly see what conditions are like all over the world.
http://bit.ly/tUuEKB (app is free and ad-free, more just an experiment than anything else)
Backend is in java (server) and perl (pulling data).
More interesting than the app is perhaps the platform behind it. I hope to introduce other kinds of data to be seen on a map.
Currently getting about 500-1000 downloads per day on iPad. Really just curious if people find anything unique or interesting about this, that might hook them into my app vs another mapping app.