There are plenty of comparisons between the iPad and the Surface Pro, but in reality, it is hard to judge an iPad by ultrabook standards. And that is what the Surface Pro really is: an ultrabook with a touchscreen and an interesting take on the keyboard.
The Microsoft Surface Pro features a 1.7 Ghz dual-core Intel i5, 4 GB of RAM and an $899 entry-level price. And when you add in the $119.99 Touch Cover, the Surface Pro is actually more expensive than the MacBook Air, which starts at $999.
There is no denying that the Surface Pro is more powerful than the iPad 4. At almost double the price, it certainly should be more powerful. And this added power brings in a new set of users who want the versatility of a tablet without giving up the ability to run powerful applications.
All of which begs the question: Does the iPad need a Pro version? A 13-inch iPad powered by the 1.7 Ghz Intel i5 (or equivalent) with 4 GB of RAM would give both enterprises and iPad developers plenty of elbow room to do almost anything on the iPad. This could really open up the iPad to the enterprise, and even allow it to compete in new areas such as console gaming.
Thus far, Apple has remained very uniform with the iPad series. Even after introducing a high resolution Retina Display and a 7.9-inch iPad Mini, the same iPad apps work on all iPads. The introduction of an iPad 'Pro' would definitely cause a division within the app store, as Pro-designed apps would be too powerful to run on the normal iPad, but this route may be needed if Apple is going to take the next step in leading us to the post-PC world.