Yep I've been looking at the venice too. I didn't actually know about it when I started my si4703 project, but now I know how to control an I2C device via an android I'm thinking the venice would certainly be the better option as it can be controlled via I2C as well. Shouldn't be too hard to adapt the code to it. in fact it would probably be easier as it only needs single byte commands and doesn't required complicated timing of register programming like the si4703 does.
That said the Scosche looks pretty tempting indeed! nice find :-)
I'm just trying to think about what the setup would be like. Scosche in the boot or glovebox (keeps access to CD, mem card etc available). Cheap tablet in the dash. You could have the tablet going in to the aux on the head unit or via A2DP, but then you'd have to keep selecting aux to get any sound from the tablet. Fine in some cases, but no good for say sat NAV interruption to music playing through the head unit. Or have some sort of auto sensing audio splitter to pick between head unit and tablet, but not sure how easy that is going to be or if one even exists.
Ideally it would be switched to the head unit by default and switch to tablet when it detects sound from the tablet, that way NAV would happily interrupt the head unit. If I can find this setup I think I'd definitely buy one, otherwise it's just going to feel like 2 separate systems having to switch between them. Maybe I can do without sound from the tablet, not really going to be using it for anything, onboard speakers may suffice for NAV too.
Suddenly lots of options to consider hahaha