A site in Sweden is showing off LG’s flagship product the new Arena KM900 phone along with a first peep at its dynamic 3D S-Class UI. While we can’t see any of that promised multi-touch feature here, the cubic interface is interesting and feels good use the KM900’s 3-inch, 800 x 480 pixel WVGA display and dedicated media chip. It’s also expected to hit in April for 4,500 Swedish Krona or $535 US.