Did the 2.0 experience in IAH last week. The cameras have been improved so you can adjust them to get a better picture. The I94 that came out as a second receipt showed 'WB' for my VWP entry. I of course had incated that my reason for visiting the US was as tourist during checkin with Lufthansa. The CBP officer checking/collecting the kiosk receipt wanted to know if I have a 'visa'. When I told him I just have an ESTA he looked a bit puzzled but let me thru. Oh well. I thought he was not the right person to debate the WB vs WT topic...