After a period of silence, Opera is bouncing back into the Mac market with a preview of Opera 7.50 for Mac OS X. The software - "unfinished and unsupported beta-quality" - requires 10.1 or later, and brings Opera's Mac edition into line with the Windows and Linux versions.

And some. It includes Opera Mail, which has been standard on the other platforms since version 7, and experimental IRC support. It integrates with Keychain, imports information from Address Book and bookmarks from Safari, and has a Mac Native skin to give the look and feel of OS X. Full sychronisation with Address Book and support for Liveconnect are planned for the final version.

Download and related information is available here. ®