The new firmware for the A65 and A77 SLT cameras will probably be released in mid-October, 2011. Firmware version 1.03 was already spotted in a recent Sony event in Thailand (see picture above).
Sony claimed that the NEX-5N clicking sound during video recording is caused by a mechanical part of the shutter that "clicks" during sudden movements of the camera. Sony will offer free lubrication to current NEX-5N owners. There will be no firmware fix for this problem.
Via Focus-numerique