Ubuntu Edge was all hype, no way in Hell it was going to be successful, and hindsight shows me why the specs were so damn high - have you seen Ubuntu Touch on a machine lesser than a Nexus 4? It's slow, clumsy and that's on pretty decent hardware (saw it on YouTube on a Galaxy S). Tizen... a lot of commitments that are unfortunately going nowhere. My like of Tizen has dwindled to next to nothing due to the talk, promise, lack of deliverables. FFOS is nice, but it's too low end for my needs. Sailfish is middle of the road, but not coming to any market where I can buy it anytime soon. So with those two being the pick of the litter in regards to "seriousness", I'm going to find hope for better options sooner than later. Read: I'm tired of waiting.