Originally Posted by
televisor
According to the documentation you still need to get biometrics and an "interview" (although I guess you get the interview at the booth). So if they add mobile fingerprint scanners and a camera at the booths then I guess it works, but that seems unlikely.
I know a CBP officer at Niagara Falls mentioned that eventually they planned to have portable fingerprint scanners for those with ESTAS (as the i94 info is pre filled out)