Alienware has just announced they are shipping GTX 680m cards to their units by July 3rd, so I guess we can assume the new iMac lineup will be releasing sometime soon? If your one of those people who are interested in this particular graphics card you better expect a higher premium price tag than the current models. Alienware is offering these BTO GPU options for an additional $550, whereas the AMD 7970m is $350 cheaper according the to purchase options on Alienware's website. Here is an article to provide a clearer insight. http://www.notebookcheck.net/GTX680M-equipped-M17x-and-M18x-now-available.77059.0.html Anyone still willing to pay this premium price?