OLPC guys are back to basics. Though many claim that this is a undoing the all the research and innovation done in the initial stages of OLPC, I look at it as a journey towards real feasible commercial solution. VIA C7 was in market for many years now. So? It was after the death of many great personalities that we recognised their contribution to mankind. 5-6 years is nothing. Lets not get into it. However, my personal opinion is, if ARM is to be chosen, the sole basis should be the benefits of ARM over x86. It should not be for creating a lock-in for Linux.
Anyway, this is good news. Hope to see Linux on XO-2.0 too.