Vue 6 Esprit comes with SOME ecosystems installed but you can't paint with them unless you buy the Ecosystems plugin (which I did).  

I've not seen anything at Cornucopia for downloading more ecosystems stuff but there is some in the Vue MP here.  

Can't help with the sharing thing, I haven't created anything for Ecosystems yet.

I agree, the Ecosystems support was my main reason for upgrading and I'm glad I did.  If you check my gallery I posted a simple render that was over 32 mil polys using an Ecosystems preset and it rendered quickly and without problems.

Hugz from Phoenix, USA

Victoria

Remember, sometimes the dragon wins. Correction: MOST times.