MobileOrg is a FREE (open-source) iPhone and iPod Touch application for storing, searching, viewing and editing your Org-mode files.
MobileOrg works offline. Although you may not always be online, you can always access your data. You can even capture notes while offline and sync the next time you have connectivity.
MobileOrg downloads all of your Org-mode files onto your iPhone or iPod Touch, giving you complete offline freedom.
When you do regain connectivity, just press the Sync button and you will be up-to-date in no time.
MobileOrg lets you capture your thoughts wherever you are. Existing notes and tasks can be marked as DONE, or flagged for later review.
Notes are simply appended to an Org file on your server, and can be refiled easily when you return to your desk in Org-mode.
Now you can change your Org-files anywhere: mark an item as done, change priorities, add tags, even change headings and body text.
When you return to your desktop, a single Emacs command will integrate your changes back into your Org-files.