Skype’s new Mac beta delivers Boingo hotspot Wi-Fi access and screen sharing. Screen sharing is showing who you’re talking to what’s on your screen.
http://www.skype.com/intl/en/download/skype/macosx/beta/
Technical details
Version 2.8.0.324 File size 42 MB. Official release. Release date: January 6, 2009. File name: Skype_2.8.0.324_BETA.dmg