Wifi weather map for conferences
Here’s my lazyweb idea of the day. Someone really needs to invent something that combines wifi connectivity / strength / load information with GPS. Should run in the background on laptops or phones and periodically update to a central location. Stir, repeat, and spit out a map for big conferences like JavaOne so that you can know where to go for connectivity.

Hi! My name is Alex Miller and I live in St. Louis. I write code for a living and currently work for
One of my customer already did it and I think you can use it.
http://www.wefi.com/
You’re desire are already done: http://www.wefi.com