Concerning my previous question Non simply connected HyperKähler 4manifolds without ALE metrics the following question occurred to me:
Is there any open Ricciflat ALE 4manifold other than HyperKahler ALE 4manifolds?
Concerning my previous question Non simply connected HyperKähler 4manifolds without ALE metrics the following question occurred to me: Is there any open Ricciflat ALE 4manifold other than HyperKahler ALE 4manifolds? 


see Ioana Suvaina, ALE Ricciflat metrics and deformations of quotient surface singularities, remark 4.5 http://arxiv.org/abs/1102.2672 (this reference was also in one of the answers to your previous question) 

