LG didn't say what software lies under the Arena's 3D S-Class interface, but the second phone to sport that look, the LG-GM730, will run Windows Mobile -- and not just any version: Thanks to the deal Ahn and Ballmer discussed in their video call, LG will be the first phone manufacturer with the new version of Windows Mobile. LG expects the phone to go on sale before the end of June.

The company also showed off the LG-GD900, a smartphone with a translucent keypad that will go on sale next quarter, and the LG-X120, a Netbook with a built-in 3G HSPA modem.