Release Candidate 2 was released this morning while the final version of the toolkit is expected for release next week.
After Digia released Qt 5.0 Release Candidate 1
last week, new bugs were uncovered and the developers decided a second release candidate was needed. That second release candidate is now available for testing and if all goes well they will release Qt 5.0 final next week -- just in time for the holidays.
Lars Knoll announced the release of Qt 5.0 RC2 on the Digia Blog
. Other resources are available from the mailing list announcement