I see that the most recent post on Midnight Beep's program, Inbox, is from more than a year ago.
I'll state upfront that I'm relatively new to the GTD process/method and that I have not really implemented it in full. However, for myself, the most important hold back has been that I have not found a good GTD program for use on the Mac.
I've tried iGTD (it looks as if the programmer is no longer working on it for the past year or so), OmniFocus (not really GTD-specific and too complicated), Ready-Set-Do (not really a program per se but a bundle of Applescripts and so lacking a single interface), and Things.
The latter has been the most promising and has a nice clean approach. However, I found it to be too "loose" to use in the application of the GTD method. It's just out of beta testing and so there is a fee that is to be paid and, although relatively inexpensive, I am not convinced it's worth the investment, more so in the time to learn and apply it further rather than anything else. The incremental changes in the various beta stages does not cause me to think that the interface is to improve much further.
I recently tried Inbox by Midnight Beep. This is a much more structured and robust program and so requires a greater amount of time to learn. However, it does follow the GTD method quite reliably. For example, it has a two-minute timer as you review an item and either deal with it then and there or or to make it actionable, etc. It is a program that helps to create a structure and discipline to the applicaton of the GTD process that really is missing in the other programs I've tried or reviewed. The website does state that there is a Ver 2 that they're working on but, admittedly, it's not in beta yet.
This program is certainly promising in providing a tool in applying the GTD method in a disciplined approach. Has anyone else tried this program or any other program that closely follows the GTD method?
Thx for your feedback.