Before I get your hopes up, no they haven't improved spreadsheets yet. However, that is on the way. What is arriving now, though, is the ability to add comments to your documents, view tables, and improved Google presentations viewing support. You'll even get speaker notes and the ability to swipe between slides.
There are more features on their way. Here at Android Police HQ, we've been eagerly awaiting proper spreadsheet editing (which is currently horrible to an unusable degree), and Google has seen fit to name check that very feature in its "More to come..." section.
You may remember Pixel Qi, an ambitious display maker looking to provide users with brilliant displays that not only save energy, but which are actually readable in sunlight. Since we covered their 7" and 10.1" displays way back in May, the company has continued working, announcing in a blog post yesterday a new display which "matches the resolution of the iPad3 screen, and its full image quality including matching or exceeding contrast, color saturation, the viewing angle, and so forth with massive power savings." In the post, Mary Lou Jepsen, founder of Pixel Qi, goes on to explain the display's special low power mode which "runs at a full 100x power reduction from the peak power consumed by the iPad3 screen."
Of course, the new display's ratings in the table above are "proposed" and not quite official just yet.