The Raspberry Pi PCB measures 85mm x 56.2mm excluding overhanging connectors and is 20.8mm high.
No actual gerber files have been released the last time we looked (07/2012).
There is no official drawing the last time we looked (07/2012).
This is our 2D drawing of the Raspberry Pi. It has been created in Altium and exported to DXF. As no source DXF was available from the Raspberry Pi Foundation we had to work from overlaying photos and their gerber image. The positioning of the header pins is spot on and tested on boards we've made where the Raspberry Pi is fitted as a daughter board (see below). The positioning of the other Raspberry Pi connectors looks good from a visual check but we've not tested this as yet by designing for an application where the connectors need to align with a panel cutout.
Mounting the Raspberry Pi onto a PCB
These Samtec headers do the job, available from www.toby.co.uk (United Kingdom Samtec distributor who typically have to order in on demand due to Samtec's massive range, however Samtec don't have minimum order quantity restrictions)
ESW-113-33-G-D – 2x13pin double row 16.13mm high socket for P1 IO header
ESW-108-33-G-S – 1x8pin single row 16.13mm high socket for P2 header
As used in this design for one of our clients, which aligns the Ethernet and USB connectors for use through the end products front panel and also provides up to 500mA for each of the USB ports:
Panel Mount HDMI Connection
These suppliers provide panel mount HDMI cables:
Prior to finding the above this was the best low cost cable based solution we had found (click on images for links):
Community PCB Images
http://www.andrewscheller.co.uk/rpi_pcb_modules.html – uses a very cool stacked image tool