Alot of people may not realize it but the unlocked pentiums don't look half as much like the decent, good-value, over-clocking beast that is a no-brainer for entry-level system builders, that they are being hyped up to be. Here is why:
The unlocked Pentiums are dual-core processors missing certain instruction sets, being priced at around $80, this is similar in price to the Athlon x4 750k which I believe have those missing instruction sets. In PassMark the Athlon has a score of 4313, the G3420 (also 3.2GHz) has a passmark score of 3,458, assuming by some miracle you can achieve 5GHz you would end up with a score of 5403, in such a case the theoretical maximum performance of one of these pentiums is probably going to be comparable to the athlon!
Ignoring the performance and price of the two processors, we have the motherboard situation, the Intel motherboards start at $60, however this will not allow you to overclock the processor, the cheapest Z87 is $106. The cheapest Athlon compatible motherboard is $50, this will alow you to overclock the processor, a saving of $56 for the same performance (or about 50% more for the Intel)! For about $10 more you could buy an AMD FX-6300 and an M5A97 LE R2.0, this gets 6,365 in passmark.
Now if intel Had come out with a $60 unlocked duals core part (in otherwords replacing their existing dual core lineup with unlocked parts at no-premium) , if it could be overclocked on that $60 motherboard, it would be $10 cheaper (Probably impossible I know), and if it could reach 5Ghz+ it would be competitive! As it is, if these things start hitting 5GHZ (doubt it since I believe the integrated voltage regulator is still onboard, and crappy TIM), it could start cannibalizing their entry level Quad Cores (assuming gamers buy those) based on a price-performance analysis.
If they released an unlocked quadcore where would that sit, $150, below the 4670K, that would just cannibalize their enthusiast grade sales! So the conclusion is that truly unlocked and overclockable parts are incompatible with intels market segmentation, and that they will not be competitive with AMDs entry and mid-level offerings.
SOURCE: http://wccftech.com/intel-devils-canyon-pentium-20th-anniversary-series-cpuz-shots-leaked/
TLDR: Not price competitive, not compatible with Intels market segmentation policy, nothing more than PR.