The only thing that worries me is that I can't found any of those people anywhere.  However, if their company is a government contractor, it would make sense that they were not allowed to have social networking profiles.

Remember what Ms. Saunder's said in her email to me:
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We are trying to keep this very separate due to the work we do trading as CMS (Cambridge Microprocessor Systems Ltd.) with the UK government.
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Rebecca Saunder's email seems like she is a real person and I think they will flesh out to be legit in the end.  I bought two units, because I did enough research to make me believe that they are real.  I admit, it's a risk and they could have done a better job with some proof of product. But they already sold half of their inventory in less than a day, regardless, which is amazing.