According to the announcement made by
PPCGeeks "All information detailed within may not be entirely official, although it is definitely the closest information we have heard on actually being real. Without wasting anymore time, lets jump into the nitty gritty."
The new UI will be shown at the Mobile World Congress 15/02/10.

The User Interface is based upon codename “METRO”. It will be very similar to the Zune HD User Interface.

Full Zune Integration.

Sync performed by Zune software - end of the line for WMDC.

App install only via Marketplace.

No Flash Support

No NetCF backward compatability.

No OEM interfaces allowed (SPB, Sense etc).




No Multi-task support.



So in effect no Zune phone as such - all Win7 phones will be Zune Phones. But the cost in individuality and configuration looks positively awful. All the advantages over an iPhone are being dropped in favour of a MS version iPhone using Zune instead of iTunes.
If this is all true this is not going to be good

.