Some products are just so weird that perhaps you don't expect them to get a successor. Like the curved Samsung Galaxy Round. Or LG's rollable Bluetooth keyboard. Well, scratch that last one. LG has just indeed unveiled the follow-up to one of last year's most unique Bluetooth keyboards. But rather than just a repeat of the original, the LG Rolly Keyboard 2 finally adds a dedicated row of keys for numbers and special functions, as well as a handy small tab to help unroll the keyboard.