Indigo is the black one, without a camera. Crimson is the silver one, with a camera. Both have near identical specifications outside of that (Crimson is slimmer and bulkier, if I remember correctly). Crimson also sports the curved keyboard in order to slim the device up a tad but keep the single-key QWERTY layout. There are QUITE a few threads, pictures, details, etc. on here... have a look around.