Or Paintshop Pro. Or Gimp. I used to spend hours teaching myself how to get the best from photo-editing software - but the utility of what's now available for the iPad and iPhone is truly startling.  And any photo-management tool - Picasa in my case - will throw in a load more options too.

None of them will really do the trick if you need layers, complex masks or fine selection control. But for the 95% of photos that I just want to tweak a bit - to change the feel, or correct some basic exposure issues - they're stunning. A few recent examples here - none of these took more than a few minutes, none of them match what I could do with a well-calibrated monitor and £'00s of 'proper' software but, really, who has the time?