How to type SMS in a full sized keyboard? The only way I have to send SMS is through my Android Phone, since I don't have a GSM/3G modem.

I would like to use my Desktop's keyboard to type those SMSes.

Is there any application that would allow me to type in the keyboard and the keystrokes echo in the Android device, through bluetooth or an USB cable?
Check out WiFi Keyboard -- allows you to use your desktop's keyboard to control the Android.

NB: I have not personally tried this, but it looks pretty cool. aimed particularly at apps that require keyboard input, but still don't pop-up a virtual keyboard......

Again, WiFi, not BlueTooth. aaargh. Unless, you know, you get your PC to broadcast on BlueTooth.