I'm Kenyan too (in the diaspora, though) and I've been amazed by how quickly and thoroughly some mobile technology has spread back home. Services like mPesa that enable mobile payments are actually much better implemented and more widespread than similar technologies Stateside.

Even my grandma in Githumu which for years only had telephone service from 9am-5pm (and only via an operator) now has access to mobile phones will all the trimmings.

I might even send her a new Android phone for xmas :^)