[hosa]

I think its a mystery as to why we don’t see Symbian phones from manufacturers that should take advantage of their opensource repository...

[resoluteteeth]

Because it's completely obsolete now?

[antifa]

That explains why nobody is making a new Symbian device today, it does not explain why they stopped around 2010.

Nokia apparently abandoned development so they can make windows 7 phones. Android filled the gap, but android was probably an inferior product before Symbian was abandoned.