Should you roll one up? Why not. A portable keyboard is a very useful device as long as it’s big enough to be comfortable yet small enough to be truly portable. LG’s Rolly fits that bill and the design rolls up into a stick. It’s got 4 rows of keys, 2 less than normal but width-wise it’s nearly full-size. When you’re ready to go, just roll it up, but no need to lick the edge.