I just sent a message to their HQ in the San Francisco Bay Area. They'll be opening up in about 3-4 hours.
I asked about UK stock, or options to send their US stock to the UK. Also asked about pre-order options, etc. I reckon they're having an issue with their UK wholesaler atm. Very small startup, it seems.
Based on my personal experience with Californians however, most are very forward thinking and very earnest with regard to providing great customer service. I have a feeling that we can get a couple over here if we really want them. Will let you know what I find.