[garotasemfio]

I found myself also struggling with contexts these days, and I use Omnifocus almost since it was born.
What happens is that we change the ways of working without notice. Today, I sat down to make a mindmap with my new contexts and found out that computer ones, @mac, @macbook air, @ipad, etc, don't make sense anymore since everything now is in the cloud -- iDisk and a 100GB Dropbox plan. I am a blogger, writer and consultant and for now on, @online and @offline are enough.
Also a new one was developed: @airplane, since I spend a lot of time in planes and airports, and @offline wouldn't be enough because some tasks are not computer-related.
I hope his tip helps you.