[tarmo]

This is a huge gap for me, too. Used OF for Mac and iPhone heavily at home and liked it. And being locked to the PC and Outlook at work I still quite long tried to keep OF as THE task management system to avoid the extra pain of switching between different systems.
I finally realized how counter-productive it was to manually type work tasks into the phone (no keyboard there, you know ...). I then tried using two different systems. Not good at all.
Now I am sitting on a web-based solution with an iPhone app syncing to it. The desktop interface is similarly ugly and inconvenient both at home and work but then again I can manage my tasks the same way not depending on my location. Somehow this feels good for the brain. Still miss Omnifocus though.