We're here at Mobile World Congress in Barcelona and ASUS just formally unveiled the shape-shifting Padfone -- just like it said it would. Even more than raw specs, what makes the phone striking are its accompanying accessories. Sure, you could use it as a standalone 4.3-inch handset, but it will also be sold with a so-called station that effectively turns it into a 10-inch tablet -- not unlike how you can slip certain Moto handsets inside the company's netbook-like Lapdocks. It will also be sold with an optional keyboard dock (just like the Prime) and -- get this -- a stylus that doubles as a receiver for when you receive phone calls. We elbowed our way to the front of a pack of voracious tech journalists, and stole a few minutes of hands-on time with both the handset and its various accoutrements. Join us past the break for some early impressions and a duo of videos.