The Orange M600 is now available.  Essentially it's an updated M500 or HTC Prophet device with Windows Mobile 5.0, Wifi and a 2 megapixel camera!

SPV M600

You can find more details at:

http://www.business.orange.co.uk/servlet/Satellite?pagename=Business%2FDevices&c=PaDDevice&cid=1044130828039