Don't know if it is available in the UK, but Garmin have ventured into the PDA VFR arena....
http://www.garmin.com/products/iQue3600a/
- Tim
PS I was a Garmin user until they stopped producing updates for my trusty GPS-90. I then moved over to a Lowrance-1000 and have never regretted it.
Just looked it up, is for US only - sorry! I must say though, the 396 looks like a winner for us in the USA with XM. Now they just need to add traffic and TIS and they will be done....