QuickTime 1.6 bugs are popping up all over. Jon Pugh <email@example.com> reported on Info-Mac that he isolated a conflict between QuickTime 1.6 and Now Toolbox 4.0.1p that caused problems when resolving an alias that mounts a network volume. In addition, two companies that I beta test for have mentioned that QuickTime 1.6 conflicts with the latest betas of their software (and no, I'm not going to say who since it's not shipping software). Beware.
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.