The OLPC project implies that what is good for the poor is bad for the rich. This "expression of global solidarity" actually promotes the so-called "digital divide", because the general public from "non-developing" countries is excluded.
More info: http://en.wikipedia.org/wiki/$100_laptop
A very good critic of the OLPC project: http://fonly.typepad.com/fonlyblog/2005/11/problems_with_t.html
-- Marc