Communicate Coughing -- If you try the Communicate Lite demo mentioned in TidBITS #199, and you leave it connected but idle in the background, it will make a slight coughing noise every five minutes to let you know you are still connected, much as AppleLink does. The reminder helps you to avoid running up a phone bill or running down a PowerBook battery. If you don't like the sound, you can turn it off, pick another one, or increase the time between reminders.
Set Time Zone Automatically in Snow Leopard
Frequent travelers may be interested to know that in Snow Leopard your time zone can now be set automatically by bringing up the Date & Time preference pane, clicking the Time Zone view, and selecting Set Time Zone Automatically. A progress spinner appears while Snow Leopard sends off information about the Wi-Fi signals in your vicinity and receives location data back.