I'd love to see something like this. I've been thinking about trying for some time but haven't gotten around to it. I have no luck with the mobileorg apps on Android, so I sometimes mark things that have a context out of the house done on my phone and update org-mode later when I get home, but then the log doesn't record it correctly, and as you say, it doesn't work for habits if it's off by a day.
- [O] Changing TODO status on non-current date Marcin Borkowski
- Re: [O] Changing TODO status on non-current date Dave Marquardt
- Re: [O] Changing TODO status on non-current date Peter Ley