Canon has posted a pair of in-demand PDF owner's manuals:
Canon Speedlite 600EX-RT/600EX Flash: owner's manual
Canon Speedlite Transmitter ST-E3-RT: owner's manual
For future reference, you will be able to find links to these manuals at the top of the Canon Speedlite 600EX-RT Flash Review and Canon Speedlite Transmitter ST-E3-RT Review pages. (thanks Niklas)