Upstream has become a lot more active, so it would be nice to have a live ebuild.
I've been trying to put together a git.eclass based ebuild but have failed so far to produce something workable, in part due to problems with the git.eclass limitations.
Created attachment 183642 [details]
Found it here: http://gentoo-overlays.zugaina.org/live-ebuilds/portage/app-misc/screen/screen-9999.ebuild
And removed two patches to get it working...
I second the need for a live ebuild. Upstream has been slow to provide a formal new release (the last one was August 2008), even though it has been requested more than once on the GNU Screen user's mailing list.
Many of the recommended solutions to GNU Screen problems seem to be "try the latest version from git" (in reference to git://git.sv.gnu.org/screen.git | http://git.savannah.gnu.org/cgit/screen.git/). There is plenty of ongoing commit activity.
(In reply to comment #1)
> Created attachment 183642 [details]
> Working screen-9999.ebuild
> Found it here:
> And removed two patches to get it working...
This bug requests an ebuild based on git.eclass
The "working screen-9999.ebuild" file above uses CVS.
The CVS is really out of date. For example, the /src/NEWS.3.5 file:
The two "-9999" ebuilds listed here  are based on git.
I've commited an initial version of live git ebuild.