I've sold my iPad after keeping it for almost 6 months. reason being not able to use enough as well as not able to use it properly for writing. I already have an MBP 15" but want to buy a much smaller notebook for carrying around. I like 11" MBA but also want to know people's opinion about portability and lightness of 13" MBP. Please share your opinion. My usage of portable computer is for writing, reading pdf and maybe photo editing but not video editing for which I use my Mac Pro. I'll appreciate any suggestions.