You are looking at an old revision of the page CustomVariants. This revision was created by Nikolaus Schaller.
About customized Variants
Introduction
The GTA04 has not only been developed with replacing the Openmoko GTA01/GTA02 motherboard in mind. It has been designed to be the core module of other devices. Therefore, it can be optionally provided with two 60 pin Board-to-Board connectors.
Examples
You can see an example device here:
It provides a 3.5 inch VGA (640x480) touch display from Ortustech and a 3900 mAh battery.
Blueprint
To simplify your design efforts, we provide a sample EAGLE 5.x board and schematics file (based on the device shown above). Just download and start developing your own adapters:
Technical details (mechanical drawing etc.)
Please refer to section 6.19 in the [Manual] for details about the mechanical dimensions, connector types, pin assignment etc.