347 karma · joined October 11, 2011
It's true that delivering them in parallel may in some cases reduce the actual download time, but given the small file sizes Apple is serving, the connection overhead (TCP handshake, HTTP headers, slow start, ...) just makes it worse. Most browsers (especially mobile ones) aren't even going to download more than 4-6 files at a time, since they're not using domain sharding.
http://www.reddit.com/r/IAmA/comments/z1c9z/i_am_barack_obam...
You can see a pic of said motors here: http://www.humanbirdwings.net/wp-content/uploads/2012/01/Tim...
There are many more details on his blog http://www.humanbirdwings.net/project-timeline/
Edit: JoeCortopassi raised some good points in his comment. I'm not so sure this is plausible, even with the 4 motors.