[scottblackman]

Re-did the whole process adding step 3.5. Still no luck. Same message.

Tried the process twice. Followed completely through the first time. Didn't work. Followed through the same steps a second time and after I had updated the settings on the phone by grabbing them from the Share Settings process. I clicked the sync button on the phone and the app crashed. Reopened OmniFocus on the iPhone and got the crash report. Went ahead and mailed it. Went through the process a third time. Same result: app crashed. Reset the phone. Went through everything one last time. No crash, but still no syncing. Same "unable to sync...." message.

The lack of other comments from users around this issue certainly leads me to wonder if this is a local problem. Certainly wouldn't rule that out, but the lack of ANY other changes on the phone or the Mac makes me really scratch my head. Not sure where to begin from that perspective.