dtgreene: Out of curiosity, why do you want to be able to browse the store as a list rather than a grid? What advantage, to you, does having the store as a list rather than a grid have? (Alternatively, what disadvantages does the grid format have for you?)
I am honestly curious about this.
Speaking for myself, the list format (as presented in the current sales) is a bit easier to read quickly, and you get a bit more info off to the right when hovering over the game icon. The grid items just expand about 5-10% and give a little thumbnail or autoplay video, not telling you much at the scale.
And for slow connections like mine, the smaller game icons load faster. Not having the autoplay stuff also helps deal with the slow speed.