Nothing like a huge billboard going up in the host city of a major mobile phone trade show to let the cat out of the bag about your yet unannounced handset, but that seems to be the tactic for Samsung at this year's Mobile World Congress.

The device, which will be called Wave, will according to the billboard in Barcelona be sporting the company's new operating system Bada, however specs apart from that it will be a touchscreen handset are still thin on the ground. 

The billboard shows the front and back of the handset with a wave of apps (getit) coming out of the phone, presumably to wash with excitement.

Samsung's official MWC press conference will be on Sunday night. 

Pocket-lint is covering all the action live from MWC from Sunday. Tune into our MWC 2010 homepage for all the latest news, photos, video and first look reviews.