I'm looking into building a custom android device to be embedded in a project I'm working on. I won't need GSM/cell service, so this would be more of a 'tablet' with wifi that's the size of a phone. The first version of this project used some lower level embedded controllers, but for a better user experience (capacitive touch screen, full featured app, etc), I'm looking into using an embedded android device and having a friend (who told me to post here about this) write an app to run on it for me. This project is starting to scale, so buying a cheap tablet and tearing it apart isn't really a good option; I'll need to build something from the ground up. My problem is that I'm more of a microprocessors guy, so I don't really know where to start with this kind of hardware.
I found this thread
which was a good start, but the info is like 3 years old now.
Has anyone tried to do something like this? Should I be trying to find a manufacturer who already does this type of thing to work with? If so, how do I find someone like that? If I am going to do the design myself, what kind of processors can run an Android OS? Where's a good place for learning that type of info? Are there any reference designs out there I can use to get started? Is running Android on RaspberryPi a good starting spot, or is that simply not scalable?
Thanks for the help, I hope I'm in the right spot. Apologies if not!