We upgrade hardware too fast. Theres no need for a Quad Core in a tablet. I'm running a Dual Core Athlon 5000+ and it works perfectly. My laptop runs on a Core 2 DUO and works perfectly.
I say bring it on... Apps are getting more and more complicated every day and we can use the power (I hate stuttering/waiting for background stuff to load). Also, contrary to what one might think, a quad core CPU is more power efficient.