You people at Microsoft seem to enjoy making really bad comparisons.
The Kin was based on the same kernel as Windows 7 phones (Windows Mobile 6.5), has a lot of the same cloud strategies as each other, and social media integration. The ROKR was a phone built by Motorola, that happend to integrate with itunes and playback media that you had already bought. It was a standard Motorola phone (E398) that they happened to paint white and add in some software to work with itunes.
Also, the kin was a nice idea, that price itself out of the market. It is exactly the phone my nieces and nephews would love to have, and had great online integration.
I welcome finding out more about the Windows 7 phone, but think it is too little, too late.
I don't think anybody who works at Microsoft should be allowed to make any comparisons anymore, you just don't seem to grasp the concept.