Kind of related (i.e. RiscOS in a non RiscOS Aware world): In this weeks New Scientist there are two small articles. One is describing a project to get computers into Africa. They have to be cheap (sub 100$) stripped back of all the excessive software and very low power. Apparently AMD have been approached to provide a low power processor ! Then there was a second very short paragraph highlighting how mobile phones will be able to use additional hardware. The problem of drivers etc will be solved by having the extra software in the hardware which will then extend the OS in the phone......sound familiar? Apparently there is a patent in the US for this filed in 2004.
Maybe the likes of Castle et al should follow these up.