While small in terms of numeric progression, Audio Hijack Pro 2.10.1 from Rogue Amoeba adds some welcome new features. The latest release of this audio recording program includes the latest version of the Instant On component (5.0), which can now capture audio from sandboxed applications purchased from the Mac App Store. The Multi-Process mode, previously used in conjunction when pulling audio from several Web browsers, is now used for additional applications to improve audio capture. Finally, audio pulled from input devices can now be configured in Audio MIDI Setup instead of always using channels 1 and 2. ($32 new, free update, 5.2 MB, release notes)
Option-Click AirPort Menu for Network Details
If you hold down the Option key while clicking the AirPort menu in Mac OS X 10.5 Leopard, you'll see not just the names of nearby Wi-Fi networks, but additional details about the selected network. Details include the MAC address of the network, the channel used by the base station, the signal strength (a negative number; the closer to zero it is, the stronger the signal), and the transmit rate in megabits per second showing actual network throughput. If you hover the cursor over the name of a network to which you're not connected, a little yellow pop-up shows the signal strength and type of encryption.