I only know this because I was so disturbed by the quality of the XM radio in my car that I had to look it up...
So the NSA couldn't necessarily snoop your data - but the FCC could (and if you pissed the NSA or FBI off, probable WOULD) come after you for these types of violations. They couldn't get your by IP address - but if your were operating this from a fixed-base - they could find you.
So the iPad is a good trinket - and has some good vertical applications (I use it for navigation at the help of my boat, and Netflix in the cabin) - but I don't think it's will displace the functionality of "personal computers" for "productive" applications.
Personally, I follow Dr. McCarthy's advise due to her expertise and credentials, alone.
Giving the stuff away is a way to groom the next up-and-coming generation into drinking your Kool-Aid. If they don't do this - they have only themselves to blame when the next generation grows up to be FOSS zellots...
Scientists will study your brain to learn more about your distant cousin, Man.