Written on December 3rd, 2009 by Pascal Coulonno shouts
Bing map has just released the beta version of there new mapping solution, it is based on the Silverlight client. It includes Streetside, the competitor to streetview. For the time being, it seems to only be available in the United State

Streetside coverage

StreetSide Example
The new silverlight client also includes an enhance version of the birdview images. Microsoft has also included Photosynth, click on the link for an example.

Photosynth
But for further details on this new release have a look at the blog from Bing.
Written on November 16th, 2009 by Pascal Coulonno shouts
MS Bing Map for the UK does now integrate the OS (Ordnance Survey) mapping, as the following screen shot demonstrates.

Depending on the location various level of mapping are available, from 1:50k down to Street View. This is particularly valid around London.

For more details, Bing Blog has provided an interesting article: http://www.bing.com/community/blogs/maps/archive/2009/11/12/released-bing-maps-uk.aspx.