^I did receive an automated order confirmation from them after I pre-ordered a few weeks ago. Their facebook seems to show them going to a bunch of conventions to show off their product, they may just be too busy to respond. Their North American launch is supposed to be the beginning of October; I'd send them another email during September. If that one goes ignored, then it might be time to worry.
If you are on Facebook or Google+, you may want to send them a message through there.