Migrate from Gmail tag-based GTD system
 

Before I discovered OmniFocus, I set up my GTD system using Gmail, as described in the now-famous whitepaper:
[url]http://spaceagewasteland.com/gtd%20with%20gmail.pdf[/url]

Now OF is on the iPhone too, I want to migrate all my Next Actions over.

I can't think of a smooth way to do this, since OF only imports outliner files. Does anyone have any ideas?