Checking my site on Devices other than a monitor

Is there any program or similar that will allow me to see what my site looks like on a device like a mobile phone, small-screen device, internet TVs, etc?

http://www.cellular.co.za/wapalizer.html

Thanks. It's a shame it only works in IE though :(

I believe Nokia had a cell phone emulator written in Java you can use. Palm probably has something similar.

Thanks, I'll see if I can find it.

EDIT: I think http://www.forum.nokia.com/main/1,35452,1_1_50,00.html is the Nokia one.