Ipod Touch it's great it has so many applications, heres another. Use Your Ipod Touch/ iPhone as Wireless Monitor This is also great if you have an old laptop, to make it faster use a cat-5 (ethernet) cable.
All you need is:
iPod Touch/ iPhone- with vnc client (I use VNC lite)
Apple Macintosh Screen Recycler
Once downloaded install it and look in the folder then open screen recycler.
It will ask if you want to buy it, I didn't I clicked Buy Later, the demo mode is unlimited but you only have 20 minutes a go.
Take note of the ip address and the port.
Then go to the ipod/iphone and type the ip address on the screen recycler window and change the port (if necessary).