Nokia reached a significant milestone today. However, more recent events at Nokia have turned something that would have been very significant into something very few people will care about.
What can we all learn from this (Qt)? Release less, but more often. Analyse the technical aspects deeply before assuming ‘buying in’ a solution will dovetail with your needs. Think about timing. Particularly think about dependencies. Qt depended on future UIs that theselves were uncertain. If you fail, be flexible and think how things might be re-purposed.