I'm still on the fence about the multiregional hypothesis. It's abundantly clear to me that hominin lineages were not cleanly divided into discreet units, and that our species is not descended from a single tribe of intrepid explorers coming out of Africa. However, I still feel like there's a whole lot of overinterpretation going on.
In my mind, the Multiregional hypothesis would have predicted a much higher rate of introgression than is being detected. All detected mixing has so far been attributable to very small numbers of events, so it seems clear to me that the major pattern in human evolution has been divergence among regional populations/species, rather than admixture.
-Blue Jay, Ph.D.*
*Yeah, it's real
Darwin loves you.