I agree it is a slower way to work but we have to remember Nokia has it's own vision here. Let's take for a example something like a no button capacitive screen configuration, this is something that should be weighted before adopted.

Would one be wise to change the whole line to a capacitive screen before considering the full effects of all markets potential or otherwise(asian) before commiting to such a gamble ?

Nokia is slowly and imo wisely putting out some capacitive devices, and that's all they need to do. I'm sorry but I see just a tiny bit of what you like in the iphone that you want to be transferred over to a Nokia handset, this would create problems with a large segment of the market that these changes would cater to, fans of the iphone.

I think your underestimating the zeal of some of apples fanbase, there would be many claiming Nokia is copying iphone. Sure you'd see some covert to a Nokia but it would mostly serve to fuel flames of vengeance. I'm telling you they are crazy I recently lost a friend because he is a apple fanboy.

I think that if Nokia sees something useful that will easily become a defacto standard they'd be best serve to integrate that into their vision all the while heeding to the feedback of the community it serves. And not react to every marketing buzz word that the media sensationalizes.