Ken Case, on behalf of the Omni Group announced that they are going to be making all of their productivity applications, OmniGraffle, OmniOutliner, and OmniPlan to the iPhone this quarter. This will be a universal build so you don't have to buy it again if you've already purchased the iPad version. Omni even has a plan to take care of users that have already bought both versions of OmniFocus for the iPad and iPhone. It seems more clear than ever that the app business model of charging separately for iPad and iPhone applications is going the way of the Dodo.
I can't wait to see how these apps look on the new iPhones. These are the kinds of apps I was most interested in seeing on the iPhone when Apple announced the larger iPhone 6 plus. I use OmniOutliner and OmniGraffle so often that this move will make the plus size iPhone a lot more appealing to me with the next upgrade.