When Jolla's first smartphone debuted with Sailfish OS, it didn't leave a great impression with some of our staff. The gesture-heavy UI was confusing to newcomers and offered few advantages over rival mobile platforms. Aside from just being different, of course. Since then, however, Jolla has been quietly improving Sailfish OS to ensure it makes a splash with its first tablet. That's right, we're talking about the slate that blasted through its $380,000 crowdfunding target on Indiegogo last November. We've been hands-on with a not-quite-final build at Mobile World Congress and the impact of "Sailfish OS 2.0" is immediate. The hardware is solid, but it's the simplified navigation that stands out the most.