ASUS on Monday unveiled its second convertible tablet just ahead of Computex 2011 in Taipei, Taiwan. Using what ASUS calls the “n+1″ concept, which refers to taking a current product and adding a single change that allows the product to evolve beyond its current capability, ASUS sought to simplify the process of moving between a tablet and a phone. The result is a unique 10.1-inch tablet that acts as dock for a 4.3-inch Android smartphone dubbed Padfone. Similar to Motorola’s “webtop” design that allows a smartphone to be docked in a laptop, ASUS’ Padfone smartphone powers the tablet when it is docked. All of the data stored on the smartphone is accessible on the tablet’s display, but the UI is tweaked and enlarged to better accomodate various functions. ASUS’ first convertible design, the Eee Pad Transformer, is in high demand in every market where it is available, and ASUS clearly hopes to build on that success with the Padfone. Hit the break for ASUS’ full press release and a few videos of the Padfone in action.