meh, that seems like a protection against physical access, if all else is done correctly, and you are screwed at that point.<p>In other news, I just placed an order for the parts for my prototype, so I&#x27;ll be putting that together this weekend.  Fun thing:  If done correctly, it should work with most android phones, as they do understand usb hid keyboards.  As a result, final design may end up with a very small lithium battery to allow it to run when connected to a phone that doesn&#x27;t offer much power.  I&#x27;ll put a blog somewhere and post an update to <a href="https:&#x2F;&#x2F;twitter.com&#x2F;andy_leap" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;andy_leap</a> as I work on it.