http://www.microsoft.com/auto/wa5.mspx

they are talking about this on the carputer forums and i was wondering if this is the same thing that the f90bt runs.

Nope, they're using standard Windows CE 5.0 on the system. Used a barely customized Board Support Package derived from the Centrality (SiRF) Titan SDK board (didn't even bother to change the string in the OS).

Does anyone have a complete working version of this??

my thinking was that it might work on the pioneer unit. then all you would need is a front end

my thinking was that it might work on the pioneer unit. then all you would need is a front end

It would work, in theory. Problem is you need the underlying code from the board support package for tasks like initializing the hardware and handing a healthy environment off to the WinCE kernel. Kind of like BIOS on your PC. It also appears that you'll need some code to periodically send an "alive" signal to the reset controller on the AV board, or it will consider the Navi dead and reset the head unit to recover things. You'll also need a few device drivers for the AV hardware itself, since that's what handles talking to the IP Bus, changing sources and monitoring the other external interfaces like VSS and the steering wheel input.

Writing this software is not an impossible task, mind you. Just very time consuming without a little help from Pioneer directly or access to source code, I would think.