Uncomplex's Mailplane 2.1.9 offers the capability to drag .webloc and .mailloc files into Mailplane to insert the URL encapsulated in the file into the message text. But the real reason to upgrade to Mailplane 2.1.9 is the fix to the problem that attaching files via drag-and-drop often didn't work if you had also upgraded to the recently released Flash 10.1 (which you want to do, since the previous version is a security hole; see "Adobe Flash Player 10.1.53.64 Blocks 32 Security Holes," 11 June 2010). The update also fixes a problem dragging text clippings to Mailplane, fixes a focus problem caused by upgrading to Safari 5, and improves performance when composing replies. Release notes are available. ($24.95 new, free update, 7.7 MB)
Viewing Wi-Fi Details in Snow Leopard
In Snow Leopard, hold down the Option key before clicking the AirPort menu. Doing so reveals additional technical details including which standards, speeds, and frequencies you're using to connect, as well as what's in use by other networks. With the Option key held down and with a network already joined, the AirPort menu reveals seven pieces of information: the PHY Mode, the MAC (Media Access Control) address, the channel and band in use, the security method that's in use, the RSSI (Received Signal Strength Indication) measurement, the transmit rate, and the MCS Index. In Leopard, some, but not all, of these details are revealed by Option-clicking the AirPort menu.