DL this app for your tmobile G1.  its called FXcam. pretty cool features like, toycam, polaNDroid. fisheye, symmetricam, warhol and ofcourse normal. not bad i tink i like it. i currently have 3cam apps on my fone haha one from default, snapPhoto, and fxcam.

ofcourse theres more settings like its photosize, color filters, and also depending on what photo mode  you are on.