I don't want to be seen as carrying on the brief argument (or maybe heated discussion is better) but it did make me think about something that I think is important to this thread...
When I was younger, I was into hi-fi and would sneer at anyone not trying to get the absolute best for their money. As I got older, I realised I spent more time worrying about the sound (and fiddling with things) than actually listening to it. I made a conscious decision to move away from that... To buy something that looked nice sitting in my room (rather than a tower of different manufacturers components and massive speakers), sounded decent enough and wasn't too expensive. The same thing happened with home automation and computers (I buy Apple mostly now because they are pretty, pleasant enough to use and I don't feel obliged to tweak and modify them to achieve some idea of computing perfection).
So, to my point... With all these things I enjoyed the hobby of it all, but ultimately I reached a point where the hobby wasn't what I wanted... I just wanted something that worked right out of the box and did the job without me poking, tweaking or beating it. I have a car pc now (in my Mk1 Audi TT) and it still feels like it's too much at the hobby stage. I enjoy that, but I know eventually I'll want something simpler, prettier and more useable, even if that means it's less configurable and has less features.
The reason this thread made me think of that is that I've used WinMo a lot in the past and I now have an iPhone. I know the iPhone is in many ways a lesser phone, but in all the ways I describe above it's so much better. I can totally understand why the iPhone prompted you to try to change the way you see the carputer. I'm not totally convinced it's the solution, but I'm curious to see how this turns out.
(If anyone else is trying to stick a pc in an Audi TT, feel free to PM me questions or tips. I'll try to put some photos up sometime soon)