Gimp has an interesting project happening which you may want to be a part of.funding.openinitiative.com/fun…
They want to make a mirror painting functionality for Gimp. The developers require funding from users like you to make it a reality. Like all crowd funding projects for software, I'm watching it closely because programmers need to get paid and this is a great way for that to happen while still making sure that software gives users freedom.
Let me know in the comments below if you think campaigns like this are a good idea and if you would support your art tools in this way.