I'm running a Nokia N900, and I use Classic Print as an alternative to Instagram. While the Instagram process goes like: -Start the app, which cues your camera

I'm running a Nokia N900, and I use Classic Print as an alternative to Instagram. While the Instagram process goes like: -Start the app, which cues your camera -Take a photo -Apply pre-set filter -Share The Classic Print app is a bit more complex and linuxy: -Take a photo with the stock camera app -Open the Classic Print app -Navigate the filesystem to open the photo you just took -Apply the filters manually (there is only one pre-set filter, but you can tweak the filter settings to change color balance, noise, polaroid-style white frame, fading, etc.) -Save your modified photo -Open your web browser to navigate and share to various social media sites While it's not the easiest to use, it is all free and open source.