This requires Javascript though, and its operation is way more complicated. It depends on peer-to-peer delivery, which is pretty hard when most users are behind NAT'ed routers and proxies. Furthermore, you need quite a few concurrent users requesting the same resources before it will even start using this CDN.

Finally, it's "currently in private beta", which means it's relatively untested in the real world, and not open like Coral at all.

I think there's just no comparing the two.

Yes, but it's the new hotness :)

Much like using Hadoop on 15MB CSV files? :)

15MB of Big Data.

It would be nice to have a dropin JS library for CoralCDN too.