One way of using the media set and the iPad is using the iPad as a second screen with the AirDisplay app and put the media window on the iPad. The screen will be touch sensitive. And if you can't drag the media window off the main screen (I can't remember if you can) you can use one of the modules that displays the media library on the iPad. Modules can be dragged of the main screen for sure. And since you can't use Touch OSC at the same time you might want to put some more modules on iPad screen if there is enough space.
You can use the iPad and a cheap little midi controller like the Korg Nano Keys. There is nothing like the tactile feel of a real "physical" midi controller.