That is the question eWeek asks, as Negroponte’s One Laptop Per Child project swings into high gear (despite the objections of one wealthy purveyor of perpetually insecure products).
The answer is half in-hand already..
Half the crap on the internet is useless for this project, who’s objective is getting information into the hands of those who could greatly benefit from it. The machines are already using a hardened Linux version which blocks random code execution and memory writes. And the machines will be open, meaning user ids and passwords are a non-issue as well.
I think the biggest challenge here will be physical, not technical, security. How long until these things are being stolen and sold on the black market?