OnLive Desktop is a cloud-based app. That means it doesn’t actually install Office on your iPad. It acts as a gateway to a remote server where Windows 7, and the three Office apps, are actually running. You create an account, sign in, and Windows pops up on your iPad, with icons allowing you to launch Word, Excel or PowerPoint. (There are also a few other, minor Windows programs included, like Notepad, Calculator and Paint.)
Overall, I found OnLive Desktop to be a notable technical achievement[…]
That’s a revolutionary piece of VNC magic there…
Also: it sounds horrible.
(Mossberg might be losing it.)