12 Inch is a bit small. 13 would be great. Maybe the Lenovo ThinkPad X1 Tablet would work. Does anybody know if the keyboard works while disconnected? So one

12 Inch is a bit small. 13 would be great. Maybe the Lenovo ThinkPad X1 Tablet would work. Does anybody know if the keyboard works while disconnected? So one can put the tablet on a stand and still use the keyboard?