If you like to be on the bleeding edge and have an Android device (phone or tablet), here is a new .apk file for you to play with (you will need to allow your Android device to allow untrusted applications to be installed, so it's for advanced users only) : FotoSketcher.apk
You can take photos, open images from your picture gallery, apply different parameters and save the resulting "painting". To open the parameters menu (and run the effect), tap on the menu icon in the top right corner of the screen.
The available effect is very much a work in progress and is far from being finalised.
BTW, you might still encounter "application not responding" error messages, but hopefully they should be rare.