Khan Academy - There's An App For That

Khan Academy, which has had quite a lot of attention lately, now has an iPad app. The site is well known for providing educational videos for all sorts of things; now the iPad app opens up further possibilities and convenience:
The enhanced version of Khan Academy will include time-syncing between devices--no Internet connection required--an interactive transcript of the lectures for easy searching, and a handy scrubber for moving between parts of the lectures. Perhaps more importantly, now that more schools have begun adopting Khan's lectures for their own classrooms, the free iPad app could possibly replace or supplement textbooks, saving cash-strapped schools and students a lot of money.