I have always liked the 13" form factor more than the 15" when traveling. The only reason I purchase 15" pros is because of the graphics. What are your thoughts on the graphics power of the 13" verson rMBP. Do you think it will stick with intel 4000 only or will we finally see discrete graphics on a 13" model? I hope for the latter but feel it will most likely be the former. Any articles that point one way or the other?