1. A place for a water bottle on the side.
2. A waist strap to take some of the weight off of my shoulders.
3. Better looking exterior. Yes it's slick, but it's just another black bag among black bags.
So until something else comes along, I'll continue to go between this and my Tom Binh Super Ego.
I like the Binh for looks and style, but the Dane holds more and is more comfortable to wear. Tom Binh has some beautiful (read expensive) bags, and is made in Seattle. So if you are feeling like getting something that will turn some geek heads, and have the cash, check them out at the link above.