Recently unable to install (really update) gnome3 on gentoo

[Allan Gottlieb <gottlieb nyu edu>]

I run gentoo and have been trying out gnome3 on one of my machines.
A few days ago my normally daily system update (gentoo is source based)
resulted in a failure I cannot understand.

    oldlap ~ # emerge --newuse --update --with-bdeps=y --keep-going  --backtrack=30 world

    These are the packages that would be merged, in reverse order:

    Calculating dependencies... done!

    emerge: there are no ebuilds to satisfy ">=net-im/telepathy-logger-0.2.4[introspection]".
    (dependency required by "gnome-base/gnome-shell-3.0.2" [installed])
    (dependency required by "gnome-base/gnome-light-3.0.0[shell]" [ebuild])
    (dependency required by "@selected" [set])
    (dependency required by "@world" [argument])

    oldlap ~ # eix telepathy-logger
    [I] net-im/telepathy-logger
         Available versions:  0.1.7 (~)0.2.9 0.2.10 {doc +introspection test}
         Installed versions:  0.2.10(11:00:55 AM 06/09/2011)(introspection -doc -test)
         Homepage:            http://telepathy.freedesktop.org/wiki/Logger
         Description:         Telepathy Logger is a session daemon that should be activated whenever telepathy is being used.

    oldlap ~ # 

The emerge fails saying it can't find an ebuild for telepathy-logger
having version >= 0.2.4 and support for the introspection USE flag.

But the eix command shows that, not only are there ebuilds with this
property, but one such version is in fact installed.

Any help would be appreciated.

allan

PS my gentoo system is ~amd64 with the gnome overlay