They’ll join OmniFocus, which I may have mentioned one or a thousand times before. There’s no timescale yet but the Omni Group is looking for beta testers for the apps:

Are any of you interested in helping us test our apps before they’re ready to submit to the App Store? We’re working on bringing all of our iPad apps to the iPhone, so we have a lot of testing to do! And with Apple’s new TestFlight Beta Testing program, we’re able to invite up to 1,000 of our customers to test our apps while they’re still under development.

Interested in testing Omni’s iPhone and iPad apps? – Ken Case, The Omni Group blog (7 November 2014)

There’s not a lot more detail in the full piece but it does include instructions on how to apply to be a beta tester. I think that 1,000 Apple-imposed testing limit will fill up very quickly so go take a look now if you fancy it. I’ve applied but I only really know OmniFocus: as much as I use OmniOutliner, I’d say I’m a very basic user of it. I’m looking at OmniPlan but haven’t even glanced at OmniGraffle.

So for me the news here is that at some point soon we’re going to have OmniOutliner on iPhone and that’s big.

You have to suspect that this move is related to the bigger screens of the iPhone 6 and iPhone 6 Plus. I’m currently sticking with my iPhone 5 so I’m curious to see both how these apps work on that and whether their presence will change how I use the iPad versions.

Speaking of which, the iPad versions of OmniFocus, OmniOutliner, OmniGraffle and OmniPlan are available now. There’s also the iPhone version of OmniFocus and there are Mac editions of the lot too. Those Mac ones are available in the Mac App Store but I recommend getting them from the Omni Group’s official site.