It looks like dual Fermi won’t be coming anytime soon. A few partners have said that at this time they are not aware that there will be a dual Fermi card and if Nvidia decides to make one, it won't be close to March 27th's single GF100 launch.

Dual Fermi can be expected hopefully towards the end of Q2 2010 and the high thermal dissipation and complexity of cards are few reasons for this postponement. Nvidia would definitely like to have dual cards out, but it might take a little while before it happens. 

A good news is that mainstream and entry level Fermi versions should be coming this summer, slightly delayed from its original plan, but for the Dual card, it’s not certain when should it happen. Nvidia is not telling much to us or its partners either.

So in the next few months we guess that Radeon HD 5970 will remain the fastest card around and this is not something that Nvidia and its fearsome Jensen likes. You can be sure that Nvidia is not at all thrilled for this delay, but everything related to Fermi looks quite delayed and definitely doesn't sound like a walk in the park, but apparently it's possible.