AS FF said in one of my conversations with him a while ago, the PEA is simply a laptop, as you have stated, with closed off ports for security.

The PEA states they have security approval from various film companies but have never listed the names, have never given the PEA to any film company to test for content security (that has been made public), no film company has public given their approval to the security of the PEA (that we know of),

And the topper is, how many custormers does the PEA have???

Perhaps I haven`t kept up with the latest news but I think American Airlines is the only one and haven`t given their final approval of it yet.