Now if only there would be such an application running under windows too. I hate to bring it up again, but after having been a loyal reader of 43F since the beginning, and trying out a gazillion different applications to give me a good GTD setup, I'm still coping with a less-than-ideal setup:

ePIM on a USB-stick. Don't get me wrong, ePIM is a great piece of software with a really good development cycle and ingrained beta-team, but it doesn't do the job as easy as, say an application like Tracks. But in all fairness, any GTD application that takes me to setup an application framework, a webhost and a seperate database to run, isn't going to easily work in most people's setups.

Anyhow, I digress. Conclusion: kGTD looks spiffy, wish I could testdrive it too. Oh and Merlin, your contexts don't look that shabby at all. It's all about reviewing the contexts every now and then. I do that during my weekly review. I'm setting aside 15 minutes to write down some stuff I've found out regarding how I work/deal with the GTD system. From there I see if I can (with a quick hack/change that is) improve the systematics if needs be (like splicing or combining contexts, etc).

I digress again! Good stuff, keep it up.