My system for remote editing:

System A: get a notebook. Write down what you want to capture when you are away from your comp. When you sit down, check your notebook.

System B: Run your org mode on a linode. Download Connectbot (SSH client) for your phone. You can now connect to your Org wherever you have cell service and work from one always-running emacs instance with emacs --daemon and emacsclient -c. I bought a personal blackberry (yes, I know) solely for the physical keyboard which makes throwing out a CTRL or META keypress much easier.