Didn't receive an emailed invitation to the Galaxy S IV event in Manhattan? You're not alone. It looks like Samsung is shaking things up a bit this time around, handing out paper invitations to the NYC shindig at its decked-out booth at Mobile World Congress. The note confirms the earlier news: March 14th is the big day, and unlike last year's kickoff, which was held in London to coincide with Olympics coverage, 2013's flagship will make its debut at 7PM ET at Radio City Music Hall in NYC. And we've got the golden ticket. We'll be liveblogging the event, of course, so mark the date!