iStumbler is a tiny little free open source tool that helps in finding wireless networks and devices with your Airport or Bluetooth equipped Mac. It is a tool that you install immediately after you get a new machine. iStumbler provides additional features over and above the Mac network tool and is very easy to use.
The interface is very simple and it provides real time display of signal strength with complete debugging information. It also provides a real time graph of the network at the top of the interface to display the stability of the network you selected.
iStumbler is a great tool to find wireless connections around you. It is specially handy when you are at a new location or just trying to explore and figure out which of the available wireless connection is the best for you.
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