I would also have trusted Sennheiser to follow through on the production of a cable for a market leading phone. I saw teh prototype over 18 months ago and find it very strange that they cannot produce it. How many other headphones do Senn make with iPhone control (including volume) that are a fraction of the price of this cable?
I have bought many aftermarket cables for headphones and IEMs and can state that I am happy with their own 'signature' in that they really do change the sound heard. The best example is a Senn HD25 with teh original steel cable, then an HD-600 copper cable, then a TWAg silver cable. You will be stunned at the difference between all of them.
Back to the topic. I feel that asking full price for an RSC800 cable for use on an iDevice is not something I am happy to do.
Amen
Sceptre