Via ARTcade, this Chromo thing is intriguing (by Protein®). It's meant to be "a colour clock that helps your body understand what time it is". The thing is that they released a prototype for the PSP:
PSP Chromo™ is a colour clock for the PlayStation Portable that helps your body understand what time it is. Based on the original Chromo™ concept, the PSP version adds a subtle indicator for time to the main menu background.
Why do I blog this? it's a curious way to turn a gaming device into an ambient display.