Looks like the "new technology" solution would be an OBDII Bluetooth sender unit plugged into the OBDII port and an android phone with suitable app to provide "almost" the same functionality as the Dasdaq (...if I can say it.....possibly already "old technology").
You can get the OBDII units out of china for $15 delivered, but they may not have the functionality - ie: there may be better ones.
I have confirmed with a mate, that update/refresh rates are okay.
This option may however preculde the addition of a wide band and auxilliary inputs etc. though..

• anyone running such a system and found a good app?
• anyone added a wide band as well to the ECU and addressed (CAN) it so you can actually pick it up through the CAN signal and present it to the OBDII port?