[Arild]

I can see that this thread has been spun for more than a year, but it should not end up with a Taskpaper recommendation:

Yes, a simple outliner for the iphone would be fantastic! I use Carbonfin's today and I would love to see an Omni app with some integration with both Omnifocus and Omnioutliner. Sending sections into straight into Omnifocus on the phone (as well as desktop) would be marvellous.
One column plus media attachments and notes would suffice mostly for my use on the phone, but adding columns for particularly calculations and dates is an interesting thought.
Sync on desktop could be something you set for each file/document.

Hope someone in Omni not to busy with the iPad is still subscribing to this... I respect the decision to focus on the iPad, but the phone is really my mobile device where I need a simple way to collect data and arrange them swiftly.