i only wish that i could annotate a kindle by pen or touch. this is super clumsy: http://www.amazon.com/gp/help/customer/display.html?nodeId=200322620 http://w

i only wish that i could annotate a kindle by pen or touch. this is super clumsy: http://www.amazon.com/gp/help/customer/display.html?nodeId=200322620 http://www.amazon.com/gp/help/customer/display.html?nodeId=2... i read a lot of papers and text books: typically i want to draw pictures for intuition or write math. you can't do that with a keyboard easily.