That's both good and bad news for developers -- while it does mean that iPad apps are releasing and selling at higher prices (something most developers believe should be the case, given the amount of work and design that goes into iPad apps versus their smaller-screen cousins), those prices aren't that much higher. Apple specifically priced their iPad apps at $9.99 after selling their iPhone game at $4.99, and if they wanted that to be the early standard for the iPad, it doesn't quite appear the plan is working out.
Still, an extra buck is better than nothing, and as always, developers should sell their apps for what they think they're worth anyway. The firm, Distimo, also says that 80% of iPad apps are paid (compared to the iPhone's 73%), and medical and financial applications are the most expensive, averaging out at $42.11 and $18.48, way higher than the iPhone's $10.74 and $5.74 averages for the same categories. So while the prices may differ, there's no questions that developers are charging more (and getting more) for applications on the iPad.