SETI@home 3.08 Security Fix -- The distributed computing project SETI@home has released version 3.08 of their client software to eliminate the possibility of a buffer overflow error in the networking code that could result in a security hole. Personally, I've given up using SETI@home as a screen saver; instead I run it as a hidden application all the time, quitting it whenever I'm doing something that requires the full CPU power of my dual 1 GHz Power Mac G4 (Apple's CPU Monitor utility shows that my standard activities use only a fraction of the available processing power). If you run SETI@home, consider joining the TidBITS team, which is currently in 143rd place overall. [ACE]
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Multi-Monitor iChat in Snow Leopard
In Snow Leopard, on a multiple-monitor system where you're using screen sharing over iChat, dragging the tiny inset preview of your own screen to another monitor shifts the remote screen to that monitor.