So It has been a week from time when borrowed OLPC entered my family of computers. I have Thinkpad T60 with Atheros AR5212 (which works with atk5k driver from 2.6.25, nice work!) and Eee PC with Atheros (which works with special madwifi patch).
Since 802.11s just landed into upstream kernel git, I was eager to take a look at this mash network thing. Oh, how ignorant I was. OLPC uses 802.11s protocol which is different from
official implementation of 802.11s and with good reason: they are using embedded processor in wifi card do to mash protocol for them (saving power and enabling mash to work when laptop is suspended).