I'm quite a big user of nested tasks and I love OmniFocus (1) on iPad's implementation of it (basically the same as OmniFocus 1(/2)).
There's quite a huge disparity in terms of support for nested tasks between OmniFocus 1 on iPad and the new OmniFocus 2 on iPhone (I hate to be critical, but at this point in time the only apparent change is the UI/X change. Obviously OmniGroup is well known for supporting its software for many years but still. And yes OmniFocus 2 for iPhone was probably a rush job due to the sudden release of iOS 7 (and the radical change in design language) – to the extent that they had to drop all efforts on the OF2 for Mac front, but still, I'd prefer if this issue (poor support for nested tasks) be remedied.).
As seen in the screenshots below, you have to navigate between 'multiple layers' on the iPhone which is intensely annoying and not that helpful (in terms of seeing the overall context of the actions/tasks).
Layer 1, 2 and 3 of tasks (OmniFocus 1 on iPad)
Layer 2 of tasks (OmniFocus 2 on iPhone)
Layer 3 of tasks (OmniFocus 2 on iPhone)
