The iPhone 5/4s is supposed to be released this fall and rumor has it that this is not the only thing Apple is planning to release. Some sources say that Apple is planning to bring another iPad to the table and if so, it would be dubbed the “iPad HD” or possibly the “iPad Pro”.
The new iPad is suppose to double the resolution of the previous iPad’s and the “Pro” iPad would be made to target upper class users. If the “iPad HD/Pro” is released, it will be able to run “Pro iOS Apps” which will be exclusive to the new device and its improved resolution. Examples of “Pro iOS Apps” could be iPad versions of Aperture and or Final Cut.