Fantastic - can't get any of the Secure Flight crap to be whole-heartedly endorsed by the public (and rightly so), so circumvent the Congressional oversight issues and work with the airlines to get the databases built on the sly.

All in the interest of convenience to the traveler, Comrade, we are presenting this capability to use your PDA with a secure scanning code. Of course, since we are the government and are here for your protection, we will maintain a copy of all of your travel records, as scanned at the Security C/P, forever, in a highly-secure, ultra-portable laptop...[/sarcasm]

Just what I wanted - another method that the Federal Government to circumvent Constitutional protections on freedom of movement.