I dis­cov­ered Cam­paignr, an open-source project for sam­pling data from the var­i­ous sen­sors on a cell­phone, includ­ing cam­era, micro­phone and GPS. I’m hav­ing some issues with it con­nect­ing to a wire­less net­work. If any­one has any ideas, please get in touch via the con­tact page. I’m also look­ing into manip­u­lat­ing the files it pro­duces man­u­ally. I could make my own Java applet, but I’d rather not rein­vent the wheel, and it would be more pro­duc­tive to spend time deal­ing with these sen­sor outputs.