Jamawkinaw Enterprises has released version 1.0.10 of its Downcast podcatcher app with new options for sorting local episodes by time remaining and file size. It also adds a 1.25x playback speed option and an episode count to the Local and Available episode lists. The release also fixes a bug that prevented episode duration from displaying, an issue that prevented sharing via email, a problem that caused authentication failures for password-protected podcasts (which may require you to re-enter your credentials), and a couple of bugs associated with playback speed settings. As of this writing, the Mac App Store had not updated Downcast to version 1.0.10. ($9.99 new from the Mac App Store, free update, 6.4 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.