Dive summary:

• Opera's State of Mobile Advertising report shows that the iPad generates more revenue per impression than any other mobile device.
• The average effective CPM for the iPad on Opera's mobile ad platform is $3.96.
• Mahi de Silva, executive vice president of consumer mobile at Opera Software, said, "The most surprising finding was the impact of rich media ad units and the shift in just 6 months - from banners and expandables to HTML5/Rich Media and Video ad units.”
• Opera's report is based on its over 35 million impressions across its ad network.

From the article:

The evidence continues to stack up that Apple's iPad is an important marketing tool, with a new report from Opera Software showing that it generates more revenue per impression than other mobile devices.

Opera’s first State of Mobile Advertising report reveals that the average effective cost per thousand impressions on the iPad is $3.96 across the Opera mobile ad platform. Demand for tablet ad executions is already up 140 percent from 2011 and Opera expects them to become an even more important part of marketers’ strategies in the coming months.