I have both loox720 and a730w and found out that.
for battery life: a730w cannot be any use to me because after I play with it for a short while battery comes to 70%. I doesn't fit my need.
Loox720 give me enough power for a full day usage with camera using, wifi, playing game, back light to 70%, and use with trenote, dictionary, phatpad and organizer software for my all day work. It is not comparable I could say.
for screen: I think the color on a730w screen is very pale compare to the Loox screen which is very colorful. But one thing asus screen give better is that the white color is real white compare to yellowish white on the loox.
For the touchscreen: I cannot write the smooth line of characters in a730w (there is some zigzag happen). it seems like it doesn't detect my dragging stylush on every pixel on screen. But the loox can give me very good writing and drawing it's like it detect every pixel on screen that my stylus move on.
For camera : normally Asus camera should be better but I don't know why for the unit I have got. My loox camera does work much better than a730w. it snap very fast and clearly with colorful output on colorful screen.
This is real experience from me with both units.
My unit may be not as the same as other so don't complain about what I said. this is only experience.
