http://onurcelebi.com/blog/how-a-diode-changed-my-life/ I've been working with electronics over the past year, including making a keyboard with batteries, and charging ports, etc for use with various embedded systems, usb, and bluetooth. Reading this article actually helped me solve some of the charging and power problems, and makes me realize I don't know much about electronics. I'm looking forward to getting together with other folks who solder, and see what happens. (Still trying to find housing, but I'm hanging around @basestationnz most mornings)