Meego was good enough that Jolla picked it up, and Intel spun it into Tizen. At the time of the N9 unveiling, it was better than Android.
Speaking of ecosystems, fast forward a few years, if Nokia had indeed attempted to push Meego and failed, Android would have been the logical choice. Now they're settling for scraps with Windows Phone, when they were once THE leader worldwide in smartphones...
Edit - by the way, Nokia was the smartphone market share leader as recently as 2011... In fact, it was during Elop's tenure that Nokia lost most of its market share, although they were on the way out for awhile before then. But had Meego had better traction, it could have been very different. Nokia had an ecosystem, and had mindshare...