Like many people these days, I do the majority of my browsing via a touch screen device on the full fat version of the site. However, I have the issue that the top menus aren't optimised for touch, instead they rely on mouseover events. I find myself constantly being unable to get where I want to be on the site because I can't use the menu properly on my device.
The ideal menu would be like how Facebook does it on touch devices - a tap to drop it down, then a tap to select your item. It'd be great if we could add something similar.