No reason to use the mobile version on Android. Unless you have trouble logging in, which some people do. In which case, you go to the mobile site, then log in, then go to the full site and you will be good to go.
I surf Arfcom, and every other site I use on my laptop from my HTC Droid Incredible, zero issues. Actually just as easy as using my laptop, and now that I got the 2.2 (Froyo) update, I get the full experience, including Flash.
Tons of threads on Arf already pertaining to Android. It is an awesome platform and I am so glad I waited for one as opposed to going to AT&T for an Iphone. I would have just as soon done without a smartphone before doing the AT&T/Iphone route.
Dont know much about your particular phone. What are the specs? Either way, you will love Android.