[keone]

Originally Posted by Robert Sexton

I spend about 90% of my time in one context.

I spend nearly my entire working life at my computer. Does that mean that, like you, I am also in one context about 90% of the time? No. As I tried to explain in my earlier post, the term "context" means more than just physical location.

Originally Posted by Robert Sexton

I'm project and task based...

So am I. I just choose to get my tasks (and thus my projects) completed in a much more efficient manner by grouping and acting on all like items together (contexts).

Originally Posted by Robert Sexton

The question is whether OF is going to encourage GTD, or require GTD.

OF is a GTD-based task manager. Does it "require" a strict GTD methodology? No.

Originally Posted by Robert Sexton

The consequence is that when you don't adhere strictly to GTD, OF behaves badly. Tasks disappear, etc.

Nonsense! Tasks don't disappear. Like whpalmer4 stated, in context view they appear at the top of your context list in the left panel (surprisingly entitled "No Context"). In planning view they appear in your projects' task lists with the words "no context" in the context column. And if you want, you can still enter a start and/or due date for them. How is that "behaving badly"?