I’ve been playing around with an app on my phone called Pixlr-o-matic (bought at a discount when Google had a promotion on). It allows you to apply three layers simultaneously – a color effect, a unique overlay and a distinctive border. Additionally there are a lot of effect packs available for downloading as part of the app (I didn’t count but there’s definitely close to a couple hundred on each category, possibly more).

It is quite the impressive little app, although nowhere near as impressive as the Davison chap.