RoaringApps is maintaining a wiki listing hundreds of Mac applications and what is currently known about their compatibility with Lion. Anyone can add entries to the list or modify existing information. Although the information is preliminary (and not all of it comes from official sources), it can serve as a useful guide for people preparing their disks for an upgrade to Lion next month.
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Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.
Encrypted Screen Sharing in Snow Leopard
In Snow Leopard, screen sharing in iChat can now be encrypted if both parties sharing a screen have MobileMe accounts and have enabled encryption (iChat > Preferences > Accounts > Security).
Submitted by
Doug McLean
Lion Application Compatibility Wiki
by Joe Kissell 
