What's more catchy than an extremely generic product name like "X3"? How about a longer generic name that's already appeared on dozens of handsets? PocketNow reports that the LG X3, rumored to be the South Korean manufacturer's new flagship when it appears at Mobile World Congress, will be rechristened the LG Optimus 4X HD. Why 4X? Who knows. Changes from a codename to a more generic name for actual release aren't uncommon, and our American readers should remember that LG tends to bow to carriers when it comes to US branding - see the Optimus LTE and its Nitro HD and Spectrum names on AT&T and Verizon, respectively.