I was pretty miffed that they didn't change much from the 296bhp to the 313bhp versions. Yes it's old and archaic but at the same time I have found it to be one of the most accurate sat nav's out there.
The TMC function is a god send and has saved me on countless occassions travelling to and from inner London. Even when there's a pile up on the M40, it has quickly registered it and diverted. I know some sat nav have failed to warn me of such occassion and sometimes are overly cautious by redirecting you when there is nothing there in the first place!
I questioned the joystick also but think about it... the way the Z rides on British roads, imagine the frustration of having to tap in an address while trying to reign in your hands involuntary movements! I think the joystick is the perfect compromise. The OS makes it easier by only highlighting the letters available when you're entering an address so that does compensate for lack of post code entry. Most post code entry systems require you to enter the street anyway so again that defeats the purpose.
I'm looking forward to Cookbot's project.