app-editors/vim-core-7.0.17 and app-editors/vim-7.0.17 are marked as stable in some archs (alpha, amd64, ia64, ppc64). However, app-editors/gvim-7.0.17 is marked stable only in ppc64. When doing emerge -uDNv world with vim-core-6.4 installed, it emerges vim-core-7.0.17, because vim-7.0.17 depends on it. But then gvim doesn't work, because it depends on vim-core-6.4. If I do emerge -uDNv world again, vim-core is downgraded to 6.4, because gvim-6.4 depends on it. After that, gvim works, but vim doesn't, because it depends on vim-core-7.0.17. I'm using amd64, but I think that the same happens in the rest of archs where vim-core-7.0.17 is stable but gvim-7.0.17 isn't. Please stabilize gvim-7.0.17 on these archs. This bug is marked with major severity because vim is an essential app in every *nix environment. Please forgive me for my english, is not my native language.
ppc64 stable as you said ^^
amd64 done.
Stable on Alpha.
ia64 done, closing