Yeah the SP keyboard is chief among the three. I was thinking about getting an Incipio Faraday case and use my Microsoft Wedge keyboard, but am worried since one reviewer said the case created two dead spots on the screen although he didn't state where. The Wedge is comfortable enough for long typing sessions it is not as comfortable as something on the GB or SP size wise. I don't intend to type on my lap, never have since I'm tech savvy enough to know laptops usually breathe from underneath rather than on the size. Choices choices. Thank you for the information! Once I try out the GB12 this Tuesday I will update the thread on my impression. Info on the GB12 is fairly scared between SP and iPad Pro comparisons. Usually it's an artist or college student in a super hardware/software demanding major inquiring about the device which an iPad Pro of SP would fit the bill, but for something in the middle it gets a little harder.