Microsoft isn't done with Office updates just because it released Office for iPad and made Office Mobile completely free -- it has a bunch of improvements in store for Office Online, too. To start with, Office has reached the Chrome Web Store. You can now launch most of the productivity suite's web apps (Excel is due soon) in the Chrome browser or Chrome OS just by clicking a shortcut. Clearly, the crew from Redmond is no longer averse to supporting your Chromebook.
Each of the apps has received at least one big upgrade at the same time. OneNote Online now offers printing support, while its Excel counterpart finally lets you add comments; PowerPoint accurately previews text, and it's far easier to put footnotes and lists into Word. If you've been holding off on an Office 365 subscription because its web component was lacking, there may be enough tweaks here to justify giving it a second look.