the problem with a 2 module only chips is that you cant unlock it, for some of us that would have been the main selling point.
for AMD though it would be a great price/mm2 rather than turning perfectly fine chips into half working chips simply due to demand. and to be honest up to 4 cores (or threads, however people want to perceive it) is still all thats really desired from most people, and anything more just isnt worth the extra price.

i do hope that because they are built starting with just 2 modules, it can have some with a good yield that OCs like crazy and thus offering 4.5ghz or more in stock forms.