He described certain applications as grabbing nickels from the path of an on-coming steamroller. Effectively what he was saying was that there are things which are going to be added to products eventually and while there is money to be made by getting there first, the developer needs to accept that it's inevitable that they're going to be ploughed down eventually.
But this isn't just Apple and it's not just iOS, it's software and in particularly operating systems everywhere (or does someone want to tell me that the differences between Windows 1.0 and Windows 7 hasn't impacted on any developers anywhere?).
If your business model is taking what someone else does and doing it just a tiny bit better this comes with the territory. You either need to live with that or keep doing it better so they don't catch up.
Marco Arment wrote a piece on how he didn't care about a rumoured forthcoming addition to iOS despite it competing with Instapaper because he felt he could bring more to it than Apple would and in fact it might bring him new customers by raising awareness of this sort of feature.
If you're not thinking that then I'm sorry to say that your product really wasn't strong enough or different enough in the first place for it to be anything other than a short term venture.