CTAN has a new package: biblatex-authoryear-icomp-tt

[CTAN Announcements]

On Thu, 16 Jul 2009 Thomas Titz submitted a new biblatex style to CTAN.

Location on CTAN: /macros/latex/exptl/biblatex-contrib/
Summary description: author-year style with compact multiple-reference-citations and ibidem mechanism
License type: lppl

Announcement text: 
----------------------------------------------------------------------
This package provides a citation scheme that combines the
features of the styles authoryear-comp (omission of
recurring author/year in multiple-reference-citations) and
authoryear-ibid (replacement of repeated citations by the
abbreviation ibidem). The implementation relies heavily on
unmodified biblatex macros, and no attempt has been made to
add further features not present in core biblatex.
----------------------------------------------------------------------

This package is located at 
   http://mirror.ctan.org/macros/latex/exptl/biblatex-contrib/biblatex-authoryear-icomp-tt
.  More information is at
   http://tug.ctan.org/info/?id=biblatex-authoryear-icomp-tt
(if the package is new it may take a day for that information to 
appear).  We are supported by the TeX Users Group http://www.tug.org .  
Please join a users group; see http://www.tug.org/usergroups.html .
_______________________________________________


Thanks for the upload.

For the CTAN Team
  Rainer Schöpf