OmniFocus for iPhone is a great productivity tool. With Apple’s new iPhone OS came integration with Reminders and Siri. When enabled, OmniFocus will check the Reminders app for new tasks, add them to your Inbox, and remove them from your Reminders list. This holds true for Reminders created using Siri in addition to those entered manually.

However, for some reason, The Omni Group limited the powerful new iOS 5 integration to iPhone 4S users. The good news is if you’re an iPhone 4 user, you can enable Reminders and Siri integration with a little bit of preference file editing. This trick does not affect the OmniFocus app’s performance, stability or existing functionality. Here’s how to do it…

This tutorial the iFile app from Cydia, but there are certainly other ways to accomplish the steps.

  1. Open iFile and navigate to the OmniFocus app in /var/mobile/Applications
  2. Scroll down to Info.plist, tap to edit, and open with Property List Viewer
  3. Tap OFRegistrations > NSUserDefaults > defaultsDictionary
  4. Scroll down to DebugEnableSiriOverride and enable it by tapping the On/Off switch
  5. Also enable DebugSiriCapture
  6. Tap Done
  7. Respring your device

Now you are able to turn on the new features within the app. Here’s how.

  • Launch OmniFocus and open the Settings view via the gear in the lower right corner
  • In the Capture section, tap iCloud Reminders
  • Enable iCloud Reminders. Enter your Apple ID credentials.
  • Tap the Connect button and enjoy the awesome new features

It doesn’t end at merely adding new tasks; if you specify a date or location, OmniFocus will add the appropriate details for due date and contexts. You can view the OmniFocus video tutorial on using these new features below.

Is this a life changer for you? Let us know how it worked for you in the comments.