Sony certainly didn't pull out the big guns today at its Mobile World Congress 2012 keynote -- those showstoppers were for CES. Instead, the electronics giant decided to trot out two new, mid-to-low end additions to its NXT line of handsets, a portfolio that previously claimed the ion and S as its sole occupants. Focused on delivering a handset for every price point, the ill-concealed Xperia U, formerly known by its cheeky Kumquat codename, combines a compact, idiosyncratic design with user experience flourishes to add value and a higher profile to an otherwise ground floor device. We got to spend some brief time with the handset, so join us after the break as we share our first impressions.Gallery: Sony Xperia U ha