The Interactive Advertising Bureau (IAB) is taking a cold, hard look at the market for advertising on the iPad and other tablet devices, launching a new “Tablet Task Force” and issuing a report on the future of “tabvertising.” (We didn’t come up with it — blame the IAB.) And while some may see the iPad’s lack of Adobe Flash as a potential barrier to advertising on the device, the IAB says that’s easy enough to overcome with a little HTML5.