Aakash is basically an Android tablet. So if we create an offline version of Wikipedia for all Android devices, [India specific], I guess that should do? Right?
This version of Aakash uses Android- the one that Datawind is making for the first pilot run (100,000 devices).
The next version of Aakash will *likely* use Android too. There is no guarantee that Datawind will make that version- the price point will be determined by a government bidding process and multiple manufacturers (all those who pass the technical evaluation) will be invited to manufacture and sell tablets at that price point- on a "rate card contract" system.