Got my e70 today with 6FL option AND the extra Ipod specific cable. I had the RUBBISH dealer fir Ipod connection on my m6 which removed the cd changer. It didnt put up whole words, was slow and didnt pause the ipod when you turned off the music...
The 6fl option (with cable) is AWSOME! All the functions of the Ipod, full names (and extra details if required), its quick and the quality is great...although I do encode all my stuff at 720kbps so it should sound good....
I just plugged in the IPOD it read it and hey presto it worked. From what I can work out from the manual the reason this is faster than the dealer fit is that the 6fl stores the details of whats stored on the IPOD in memory....and can store details of 20,000 tracks from 4 different ipods....
Alsos theres no guess work, its very clear and like the ipod menu. The dealer fit sometimes left a little guess work as to were to find menus....
Hope this helps...

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3.0d E70 Black/Beige. Dynamic/20" Y spoke, 6FL, running Boards, sun protection.
Owned 2004-2006; 2005 M6 Indiaonapolis red black merino; 745i Individual carbon black - platinum merino full alpina kit with 21" Alpina Wheels, 730d Sport saphire black - grey nappa, X5 4.6is Estoril Blue black nappa, Alpina Roadster 3.4S (Lux) grey/red leather, M3 Cab SMG Nav Individual aegean Blue with grey nappa, 740 Sport Ind Moira Red peach nappa, 330ci C/sport Estoril blue /Ind ecru nappa, 530d Msport ;