ATI Southern Islands for HD6000 series launches date

Some reports over the net say that the next  ATI Southern Islands launches is in October 2010 witch will support the next HD6000 series.

Southern Islands is the family codename for the 6000 series graphics cards whereas Evergreen was the codename for Radeon series 5000. AMD / ATI always launches with their most high-end product, so we expect the same here.
ATI’s next-generation family includes chips code-named Cozumel, Ibiza and Kauai chips, which are actually .. southern islands.
These new chips will still be made on a 40nm process because TSMC decided to skip 32nm for GPUs and advanced directly to 28nm. Moreover, the site also notes that AMD will cut prices of its Radeon HD 5000 series to defend its marketshare.
To defend its market share, AMD plans to cut prices for its ATI Radeon HD 5000-series GPUs in the near future. The action also serves as preparation for the upcoming Southern Islands GPUs, the sources noted.
AMD originally planned to have its next-generation GPUs using 32nm process and codenamed the chips Northern Islands, but Taiwan Semiconductor Manufacturing Company (TSMC) skipped its 32nm R&D for GPUs and advanced directly to 28nm R&D. In response AMD adjusted its plans and decided to continue adopting a 40nm process, while changing the product's codename to Southern Islands, the sources explained.