Much has been written this past week about Apple buying Pixelmator. Pixelmator Pro is a fantastic tool on the Mac, and Pixelmator on the iPad is great, too. The questions are whether Apple will continue to develop the product, subsume its features into the Photos app, or something else.
There are a good number of options available on both the Mac and iPad for munging photos, including Acorn on the Mac, and the Affinity suite on both platforms. But I would sorely miss Pixelmator on iPad.
I do wonder if some indie and smaller developers are nervous about a Sherlocking, though.