I want to get on with the box design, but I think until I finalise how the power handling stuff is going to happen I can't. I've been over a couple of Raspi power solutions:

http://www.pi-supply.com/product/pi-supply-raspberry-pi-power-switch/

http://pi.gate.ac.uk/pages/mopi.html

but I'm not sure if either will really do what I want. So this log is trying to commit to a specification of what I need, so I can work towards a solution. I really want an 'off the shelf' solution rather than having to build something myself. This is because I want the project to appeal to people with little electronics experience. I want people to think 'that's a cool idea, I'll try it' and be able to order consumer stuff, have it delivered and plug it in.

So anyway, what I need is:

• A button to turn it on,
• A way of it turning itself off so it can avoid SD damage etc,
• A socket to charge it up (ideally USB so I can use the chargers I have),
• Ideally the same socket to connect it to another computer for updating/connection.

If anyone knows something that can do this, please post a comment!