This is from the latest Sky & Telescope News Bulletin, of all places.

LOOKING FOR A CREATOR'S CALLING CARD

If our universe was purposefully created -- perhaps by a deity or an
advanced civilization in another universe -- could the creator have left a
calling card in the microwave background?

The idea is not as crazy as it seems. Cosmologists such as Andre Linde
(Stanford University) and Alan Guth (MIT) have speculated that an advanced
civilization could, in principle, cook up a new universe in a lab by
concentrating huge quantities of energy into a tiny volume of space....

In a paper posted on astro-ph, physicists Stephen Hsu (University of
Oregon) and Anthony Zee (University of California, Santa Barbara) come up
with an alternative idea: astronomers could look for an artificial message
from the creator in the cosmic microwave background (CMB) -- the afterglow
of the Big Bang....

http://SkyandTelescope.com/news/article_1647_1.asp