Paper Camera for the HTC EVO 4G and countless other Android devices is free this week from GetJar.com; it normally retails for $1.92 in the Android Market or $0.99 at Amazon.
If you haven't previously heard of the application, it allows for real-time photo processing. What you see is what you're going to get – no waiting. It has options for sketch, comic book, old printer, neon, contours, bleaching, gotham noir (charcoal), granny's paper (parchment), pastel, and more. Basically anything an arcade photo booth has (other than a Gene Machine), Paper Camera is able to produce real time on screen at about five frames per second. It is not designed to replace your stock camera.
I've found it quite amusing to just wander around my office looking at how interesting things and people appear with various filters.
GetJar lists this as working for the HTC EVO 4G. It does not list the 3D, but it's free this week if you want to try it anyway. You will need the GetJar application, if you didn't get it last week, to download Paper Camera. Then just open it and enter the code 167590 in the quick download box at the bottom of app.
Happy photos![Android Police]