Behringer's ultra-compact keyboard+audio interface combo is finally hit the shop these days. UMA25S has a USB connector, a very basic stereo audio interface (with microphone input though), velocity sensitive keys of two octaves, and some knobs and buttons. Keys are normal sized but their way down is shorter than you would wait - yes, it is the slim design that Roland had already years before. But Behringer offer the product at a much better price point of course: the UMA25S costs 190 USD only. The web page of the product is here.