Nokia 770 is now available at an unbelievable £75! Yah, you read that right - just 75 UK pounds. You can get the device from expansys here. The price cut may be because of the introduction of N800 a couple of months back.
For those uninitiated, the 770 is what Nokia calls an internet tablet, with a nice 800×480 screen running on Linux! The device offers excellent web browsing and VoIP call handling in a form factor that will well fit into your pocket. Because it is an open platform with a nice SDK, there are hundreds of applications available, which you can install and use. I have used this device myself, and believe me, it is a steal at £75. If you know someone in UK, ask them to get one for you!
Note: I am not affiliated to expansys in any way.