The cell phone HTC Desire, under the control of "raw" (nezapuschennoy, narutofans) operating system Android 2.1. It has mobile Internet (EDGE from Tele2).
Need: to connect to the mobile phone (and thus also to the Internet — this is important) a desktop computer operating Windows XP. Replacement operating system please do not offer. Computer equipped with Bluetooth transmitter, via Bluetooth you need to connect. (Connection via a USB cord- a trivial task, but it asked to keep. We are talking about the transition to wireless technology with freedom of relative position of devices.)
Known solutions: PdaNet (with some Goblin is imposed also to read and write SMS, ostensibly to send and receive them with a big computer), EasyTether (full version — 10 bucks).
There are other ways.