I do not and I wasn't aware that they came out with a battery powered saw but thanks for mentioning this! I like Echo brand and am currently running 3 saws by them and a backpack blower. They make some good equipment!
I've been waiting too. Can't find any info either, and was going to buy a battery hedge trimmer that uses the same batteries but until I'm sure what those will be for the US market I'm not spending any money.