Version 4.7.0 was just released on 2009-09-29: http://article.gmane.org/gmane.comp.gis.proj-4.devel/4372 Current ~arch is proj-4.6.1.
+ 03 Oct 2009; Patrick Lauer <patrick@gentoo.org> +proj-4.7.0.ebuild: + Bump to 4.7.0, fixes #287570 Your wish has been granted!
Impressive, thanks.