Yeah, I read about this a while ago. I think they're also planning 100 and 120 core versions later on. But I was under the impression that these cores are not like today's cpu multi purpose cores, but much smaller, simpler cores designed for specific duties (floating point calculations?).
Personally, I believe, that my next cpu will be 4 core. At the moment I have a single core cpu. I think I'll upgrade it in a year or two.