iPhone Wind App

I got send this link to this really cool gadget for the iPhone that could be very useful to a lot of RC Sailboat captains.
It is a iPhone Application and when you want to know the current wind speed, you just hold your iPhone in to the wind and activate the app.
And it converts between mph, km/h, knots, fps, m/s, and Beaufort.

Click on the picture and you can view their video showing a comparison to a regular hand held wind meter.

PS: What kind of gadgets do you have for the RC Sailboat hobby? Click here to let me know