I'm now pleased to annouce that I've actually ported the tutorial itself as well, which guides you step by step through building the application, with detailed explanation.
See it here: https://github.com/vvvvalvalval/reagent-phonecat-tutorial/wiki
I hope this will be a valuable resource for ClojureScript beginners.
I did this on my own, so criticism and suggestion for improvement are very welcome.
Cheers!