Remember when I said that Microsoft wants you to access Office from wherever you're working, including on your tablet and phone? Let's limit that to your Windows 8 phone and your Windows tablet, at least for now. Although Microsoft is proud of its OneNote app for iOS and Android, you won't get officially sanctioned Word, Excel, and PowerPoint on those platforms. Rumors abound that that's likely to change soon, but Redmond's is staying mum on the subject for the time being. In November the Verge predicted that you'd find Office for the iPad in the wild early in 2013. We're still waiting.
In the meantime, startups have been offering tablet-friendly workarounds for several years, notably QuickOffice and Documents To Go. You can stream virtualized Office software on your iPad or Android device with the CloudOn app. These third-party apps let you save your work to Dropbox, Box, or Google Drive, bypassing SkyDrive and Microsoft's lineup altogether.
Microsoft invites third-party developers to build apps on top of Office. The Office Store is where you can purchase these add-ons, which include such tools as a Brittanica reference guide, a LinkedIn social media hub, and a digital signature manager.
This website is where you sign in to access everything Office-related. Here, you can access SkyDrive and jump to the Office Web Apps.