I had an SLR image that I wanted to edit and could not figure out how to do it on my computer. So I moved a JPG of the image to my iPad after "assembling" the HDR image from 3 SLR shots. And then I proceeded to work on it with various iPad apps... the first of which was retouch to remove the overhead wires. The scene is from just outside the hotel in Dingle, Ireland where we stayed the first 3 nights of a Photography Tour led by John Barclay, Peter Cox and Dan Sniffin.
HDR image from computer...
Retouched (Touch/Retouch app) to remove overhead wires.
Glaze app effect applied... Glaze is one of those apps where you just have to experiment to see which of the effects you like.
Screen shot of Blender app settings when blending Glaze treated image with Retouched image.
Image saved after blending as shown above.
Screen shot of DynaLight HD treatment applied to the previous image.
Image saved after DynaLight HD effect had been applied as shown above.
PhotoToaster used to frame image with settings shown in the screen shot below.
Final image after framing and signing in A+ Signature.
So there you have it... the best of both worlds in my opinion. An SLR image with high resolution and lots of detail treated with iOS apps to turn it into something other than a literal interpretation of the scene. Perhaps you prefer the unedited image but I sure am having fun being creative with my photos.