I purchased my ipad this past Sunday. It was pretty easy decision for me to purchase wifi version over 3G version thanks to my google nexus one.
I ditched iPhone to use android and it was really good decision.
Now i don't have to worry nor deal with AT&T's terrible rate and still unable to tether with iPhone. With Froyo (android 2.2) My iPad is online everywhere =)
I'm loving this new iPad and i wonder what i would feel without 3G connection anywhere i go. It'd been crippled experience.