WebWorkerDaily (which I read and love for the inspiration it gives to tech nomads) has an article today about how Zoho is offering an offline mode for document editing and how this is great and how it's lame that Google docs doesn't have this feature.
I started to leave a comment for them but 1) their comment system ate my comment and 2) I wanted to make a picture to explain my point which I can't insert into their comments.
Complexity of Medium and Value in Editing On The Web
This feels pretty intuitive to me, but apparently it's not that intuitive since Zoho didn't figure it out (and they're smart).
So, at the top left are situations like basic email, basic text editing. Think about your 10 year old kid writing a paper for school. If she uses Microsoft Word to do that it's a waste of time and money. No one will argue the money aspect, but online document editing will be faster in terms of his time since it is simpler to learn and do what she needs.
In the middle imagine something like a spreadsheet for keeping track of your expenses or for adding up and assigning costs on a trip among a group of friends. If you use an online spreadsheet anyone can add to it and you get the sharing benefits. However, if you're a spreadsheet jockey it's tedious to use the online editors and you are prohibited from more complex capabilities built into desktop applications (monte carlo analysis? macros?).