Aside from the obvious size and weight differential, the Surface RT and Surface Pro share a very similar build; using the same materials and a familiar design. The major difference is the Surface Pro has a small slit that extends around the perimeter of the casing that provides ventilation for the more powerful, and subsequently temperature-raising internals. The Surface Pro also trades the single USB 2.0 port for two USB 3.0 ports and adds a miniDisplay port for video output.
The impact of the upgraded internals on performance and user experience is impressive. Seemingly gone are the frequently long load times, sluggish touchscreen responsiveness, and app freezes. While I have noticed some odd moments of slowdown in my early testing, the Surface Pro is overall pretty stable and speedy.
Answers to those questions and more as I continue testing and publish a complete review. Until then, stay tuned for more hands-on coverage, and be sure to voice your thoughts and submit questions in the comments below.