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.follow link
Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.
Highlight Groups in Address Book
Want to see which groups one or more contacts belong to? Select them and then press the Option key. Address Book highlights the groups of which the selected contacts are members.
Lion Application Compatibility Wiki