Travel Technology - Blue tooth travel mouse

I wonder if anyone has used the Mogo mouse or the HP BT (there are two models - RJ316AA ; RJ316UT -, and priced differently, but I cannot determine any difference) mouse styled after the Mogo? I'd like to have one or something similar. I like the idea of it charging and storing in the PC card slot on my laptop. The only issue is there is no scroll button. Any comments are welcome.

http://www.newtonperipherals.com/mogo_mouseBT.html

http://h18000.www1.hp.com/products/quickspecs/12618_na/12618_na.HTML

Have been using the Mogo Mouse BT for over a year now and like it a lot for short time use when on the road. It's always there and always charged. In the evenings when I'm doing work at my hotel room desk, I switch to my iGo Stowaway BT Mouse, which I have in my travel bag.

The lack of a scroll button is a real downside of the Mogo Mouse BT. Your post made me re-visit the website of Newton Peripherals an guess what: they offer a small piece of software that adds scroll wheel functionality to the right button. Looks like a really old piece of (W95?) software. I just installed it on a 2 months old Vista tablet pc and guess what, it works.