And sorry for answering so late. I plan to write some extensive reviews of OmniFocus and Things (at least their iPhone versions, for sure) so maybe you will find some advice there.

From the top of my head, I can tell you to go with iGTD. Although the developer seems to be absent, the code is solid. After a while, you can switch to Things for a more refined interface. And if you are ready for a steep learning curve and really, really need the state of the art in GTD-like organizational tools, go for OmniFocus. As I told you, it has a somehow difficult period of learning it, but after that it’s really a breeze.

Hope it helped

I read some of your post from your blog, after I became interested in GTD and read David Allen’s book.
On one post in the romanian version I found out that iGTD is not going to be developed and that you switched to OmniFocus. On iGTD site I didn’t see some sign that the guy is not going to develop the program further. And what about Things?
I want to implement the hi-tech version of GTD process and I could use some advice on choosing a good software for this.
Since you tested these softwares, please give me/us your impressions/advice on them.

Thanks, and good luck with your relocation and have an excellent “new life”.

Regards,
Emil

P.S. As fi scris in romana pe blogul tau romanesc, dar nu am inteles exact daca acesta mai este de actualitate pentru tine.
Toate cele bune

Mike