I've been using Opera on the TyTN II. The trial period however just ended for me and now it looks like I'm going to have to pay for it. I've been happy with it, enough to pay for it later this week. It even handles my
www.hotwire.com and
www.priceline.com bookings well. I did have some issues with trying to log into Vonage to do stuff to change settings, but don't recal if I tried using Explorer and had the same issue or not.