Today, I (finally) had some time to thoroughly test how the excellent Cydia tweak “CameraTweak” runs on the iPhone 4. (Dedicated, earlier review with thorough iPhone 3G S, 4S and iPod touch 4 tests HERE)
As with the earlier-tested models (iPhone 3G S, 4S and iPod touch 4), the still shooting tweaks (one-shot timer mode; making a shot every second after a settable timeout; locking the white balance / setting the exposure independent of the focus point etc.) all worked just fine.