Help understanding the MKi9200

I have been reading up on this product for a few days now.  I think I am starting to understand it and it seems that most people are very pleased with the product.  I have a few technical questions that need to be answered before I go ahead with a purchase of this.

From what I understand, I could use this to connect my iPhone, via dock connector, for the best possible music quality, then when I want to make or receive a phone call, the bluetooth kicks in to answer or make phone calls, then when the call is finished, seamlessly transition back to the music. 

First, it says that there is a hardwired connection for iPods (from 5th gen).  I assume that this DOES include the iPhone?  I would like to be able to connect my iPhone and have it charge, possibly in a dock or cradle, while using the music and phone features of my iPhone.  I have a 3GS.  from what I have read, seems that people are having some trouble using 3GS's with the MKi9200.  Are there still some issues or have they been worked out?  I know that somewhere along the line, apple change the power needs of the iPhone from whatever the iPods were (3.5-4.5 maybe?) to 5v (for newer iPod touches and iPhones) and that some people using older iPod accessories have trouble with fully charging their newer iPhones.  Is this an issue as well? 

2nd,  If I am using it via bluetooth, will it still put the album artwork on the LCD?  I can't really understand how it would, but it sure would be nice if it did, and from the pics on the parrot website, it seems to. 

3rd,  Are there any interference issues with GSM (morse code like sound when calls come in or wireless services are used) that would be heard over my car's factory speakers?  I hate that noise!  I now that there are interference canceling circuits in some of the high end speaker docks for home use, does this incorporate something similar?  It seems to me that many are seeing the "Airplane Mode" warning, which I believe does not show up if there is such circuitry.  So I am confused.

I would like to buy one of these for either car (whichever it most easily goes into) and if I like it, then buy the RKi8400 when it is available in the US.

4th,  There is many accounts of people not being able to properly install this system in North America.  I live in the U.S. and have 2 vehicles.  A 1998 Chevy Blazer, and a 2003 Acura TL (no navigation), both with factory stereos.  Will I be able to simply grab the proper wiring harness and install these, similar to installing an aftermarket stereo , i.e. plug and play?

Thanks for any help in advance.  Seems like a great product, but the literature seems to be somewhat contradictory and confusing.  With no approved installers near me, I not only can have it installed, but am relying solely on internet info, with no real hands-on demo.