Apple is at it again thinking ahead for what consumers might want in the future. They have filed a patent application that is for an OLED-based keyboard that can change via software instruction. That basically means that the keys could change based on what software program is running on the computer at any given time.
Each key, as shown above, could display character, possibly color and maybe a combination of the two. This brings to mind the color and key coded keyboards used by professional gamers, final cut video editors and dvorak layout users. Also, if a user wanted to change the language that they are using while typing, a simple key command could swap out the keys. Via Tuaw.