Portégé R400
Wow, found this while looking for an M400 to buy. I think I have changed my mind!
Source: http://uk.computers.toshiba-europe.com/cgi-bin/ToshibaCSG/jsp/productPage.do?service=UK&PRODUCT_ID=126832#0
The new Portégé R400 provides leading edge design and functionality in
an ultra light 12” widescreen Tablet PC platform. Offering true mobile
connectivity on the move with embedded 3G HSDPA (up to 3.6mbps) and is
the first notebook in the world to incorporate Microsoft’s Active
Notification technology. Combining Toshiba’s Edge Display system emails
are notified to the user and brought directly to their Outlook inbox.
With the Portégé R400 you will spend less time waiting for connectivity
and more time going about your business – up-to-date and ready.
The spec isn't great and it doesn't have a internal DVD like the M400 but it does look nice
Also check out: http://www.lovetolead.co.uk
Look like it will not be in the shops until the end of the month