I don't think they have ever stated anything about using the CPU, don't know. I wouldnt put it out of the question, but since they havent even hinted at it, if they were to implement it, probably wouldn't be soon.
As Fooze stated, the beta license lasts up until the 2.0 release. So it's quite the deal

(and the price may increase at or after the 1.0 release, so get it cheap while you can)
I think the integrated plugin is the same price as the reg license, so keep that in mind. You need both.
Intel quad core i5 @ 4.0 ghz | 8 gigs of Ram | Geforce GTX 470 - 1.25 gigs of Ram