From an IT security perspective, I am very weary of such public-use computers (be it at lounges, hotels, kiosks, etc). Even with modern venders locking down those systems, it is still easy enough to compromise them and install any number of key logging (or similar) malware packages. The only time I would use such a computer is for looking up otherwise public data (MapQuest directions, flight status, local attractions, etc). But any site that requires a password, credit card, or any other personal information (bank, company email, FF account, etc) I would either wait or pull out my laptop. For me, the benefit is not worth the cost having to deal with identity theft.