Adobe’s free iOS photo editor Photoshop Express got an update today to 1.5.3. This popular and simple app now requires iOS 4.2, so don’t upgrade if you’re still using iOS 3!
Otherwise this update brings ‘Retina Display’ support for crisper iPhone 4 usage, alongside better background actions like uploading to the web. This update does seem to run a little more smoothly, and still offers probably the best all-around photo editing for iPhones. There are others that specialize better, like Mill Colour, but Photoshop Express is still the ideal choice for the average user.