[Forrest]

FWIW, I noticed IE7 does this. And it's a complete PITA, IMHO. For example, on the Amex travel site, clicking on the date input field opens a popup to select the date on a calendar. Rather than opening a small pop-up where I click on the right date and the window automatically closes, it opens a whole new tab, in the background, which I have to switch to to select the date.

So if OW copies IE, I really hope it's made as a preference I can disable.