The Apad does not support it, hence the separate power adapter. I haven't received mine yet, but it shouldn't be that hard of a hack for a wall plug. Using a computer may be more difficult, as full power will not be supplied until the Apad is recognized as a USB device and a driver installed.Main issues are a) you must keep the wall power from frying the internal regulator providing power to the usb port. A diode would solve this
you need some way of allowing the wall charger power to get to the charging circuit, while preventing the USB power from cycling back through the charging circuit when power is not plugged in. A few transistors could deal with this.Or, since you have two ports, you could just cut one off from the internal circuitry and only use it for power.Any idea what voltage the wall adapter puts out? 5v should be about right for a 3.7v battery.
