Seems that the 80GB PS3 is on its way out in the US...
The current rumour is that it may be replaced with a 120 or 160GB PS3.
http://www.psu.com/Update--GamestopE...0002557-p0.php
http://arstechnica.com/journals/thum...ock-3-incoming
Although Sony say "No Comment" to releasing a new SKU in America, they have denied there will be a new SKU for Europe:
http://www.gamesindustry.biz/content_page.php?aid=32512