Selections under the menus allow you to create network profiles (and import/export them), as well as set preferences for how you connect to those networks (automatically, by prompt, etc.)
MAIN NAVIGATION LINKS:
These give you immediate access to the most used features -- Available Signals, for finding and connecting to Wi-Fi signals; Find a Location, which helps you search for Boingo hot spots; and Boingo Account, which lets you sign up for Boingo or manage your Boingo Account.
This is where you can see available Wi-Fi signals and initiate connections to them. It shows signal strength and whether the network is WEP protected (locked).
CONNECTION STATUS:
This provides the current status of your connection (if any). Which SSID (network signal) are you connected to? What is the signal strength? It also provides a Disconnect button so you can sever your connection to the current network.