Hi, I designed new Protoshield boards for the Arduino UNO R3 and Arduino MEGA 2560 R3 boards, announced today. The protoshield PCBs are available for purchase.
http://store.nkcelectronics.com/Protoshield-for-Arduino-UNO-R3-PCB-only_p_303.html
http://store.nkcelectronics.com/MEGAshield-for-Arduino-MEGA-R3-PCB-only_p_304.html