That's really cool, nice one ! As a side note, if you have the old version of this case with no recharge on/off switch, and speaker hiss, there's a quick fix I used.
open up the case as shown above, and disconnect the power connector from the circuit board. This gets rid of the speaker hiss and also stops the case from charging your psp constantly. If you want to use the onboard battery to charge your psp, use the extension cable that comes with it.
