3, my favorite carrier when I'm in the UK, has launched the SkypePhone Version 2 and does it look mighty tasty.
First their offering includes both post paid/contract as well as Pay as You Go. The fact that they make this available for Pay As You Go, and their data plans are are low as 2.50 pounds a week or 5 pounds a month makes this a real killer device.
When combined together, calls to your Skype buddies on the go, plus to anyone else with the 3 calling plans for international that were available last time I was in the UK, make it an unbeatable offer.
Now add in that they've opened up the phone to be tethered to a PC or Mac and you have the play of the year for the on the go, Working Anywhere type user.