NetSpot wireless survey software for Mac OS X

NetSpot is a new wireless survey software for Mac OS X.

Find out what your Wi-Fi network is capable of right now, it’s FREE! All you need to run your wireless site survey is your MacBook with native Wi-Fi / AirPort adapter. No special knowledge required. Exceptional simplicity, only 2 steps to get your first reports: survey Wi-Fi network and apply sleek visualizations. Download NetSpot wireless survey tool now.

NetSpot runs on any MacBook with a standard 802.11a/b/g/n wireless network adapter (AirPort compatible).
It requires Mac OS 10.6 or newer.