Personal Item Sizer? Is there such a thing? I'm not sure I've ever seen anything other than the standard Carry-on Sizer. And, that's aside from the fact that most airlines have yet to even publish an "official size" for the Personal Item. (I've only seen United do this.)

I've been looking at the eBags Macroloader 2.0 to replace my well traveled Targus bag, so his discussion is of great interest to me.