Screenshot sharers should shout in celebration, though they shouldn’t try saying that three times fast. Skitch has been bumped to version 1.0.4, and its most notable new feature is that it no longer requires that you create a skitch.com account in order to use the software. Other improvements include a simplified Welcome screen, and a fix for a crash affecting some 10.6.6 users. (Free, 6.5 MB)
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.