I originally reported on this back in June here and the latest from the PlayStation.Blog confirms it`s release and features. In brief - it will be available both as part of a bundle with Socom: US Navy SEALs Confrontation and separately. The headset will feature a HQ mode offering to

take advantage of advanced voice technologies and noise cancellation techniques to provide clear and wideband voice input to the PS3. The HQ mode will ensure a much better voice chat quality on the PS3.

HQ mode will also enable accurate speech recognition required to support or enhance ‘Voice Command’ and ‘Voice Animation’ features. Voice Command was originally used in SOCOM: U.S. Navy SEALs for PS2 to administer the AI-controlled teammates using the WHO, WHAT, and WHERE format (example: Bravo, Attack, Nav Point Zulu). Voice Animation refers to the in-game character mimicking you during voice chat. With HQ mode, these features can be enabled on a much larger vocabulary in select PS3 games.

It will also have a mute button and come complete with a docking charging cradle. A clever feature of this is you can still use the headset as a microphone while it is on charge

The full story is here