Apple has released AirPort Utility 6.3.1 for Mac, which tackles a lone problem where some AirPort base stations failed to appear in AirPort Utility. It’s available via the Mac App Store, Software Update, and Apple’s support site. Additionally, version 1.3.1 of Airport Utility for iOS has also been released to tackle the same issue. (Free, 21.4 MB)
Find Wi-Fi Networks with VirusBarrier X6
If you're in a location with multiple Wi-Fi networks, it can be hard to figure out which is the best one to connect to. VirusBarrier X6 can help - open the program's Network window to view a list of available Wi-Fi networks, complete with the name, channel, and signal strength of each.