A toy, new and exciting to me but old and familiar to a previous owner.
A Nokia E61 smart-phone, fifty Englisher pounds from Amazon Marketplace. It handles all my e-mail and VOIP as well as being rather nifty on the Web and IRC. And when I enter range of my home Wifi it switches to use that instead of GPRS. Clever thing.
The only drawback I have identified so far is the lack of camera.