25 “little-known” Leopard features that are “too good to miss”: "From the advanced sync options in .Mac to data detectors in Mail to the ability to save Spotlight searches in the Finder sidebar, Ryan Faas (computerworld.com) describes 25 of the ‘little-known but highly useful features’ in Mac OS X Leopard. ‘These ‘hidden’ features may be things you never heard of or noticed,’ he says, ‘but they’re too good to miss.’"
Apple Hot News - http://www.apple.com/hotnews/
Automator workflow builder, iChat Theater, new speech tech, saved searches, Guest log-in, PDF editing, Wikipedia integration, DATA DETECTORS IN MAIL, resizable partitions.