That's awesome. Having used f.lux on all computers, I wish it would just somehow get into iOS (without needing a jailbreak).

On a serious note, have you people talked to Apple directly to get this added either into iOS (possibly the best approach considering how the app store and app policies are structured)?

Also, how did you get this to work on iOS even with side loading (and no jailbreak)? It would be interesting to know.