CTA Tattler! If you have the interest in seeing the CTA's new trains then be sure to check out those times.
CTA Tattler also have some initial reviews of these new rail cars and the Sun-Times has an article (via CapFax morning shorts) up about the first day of runs. Expect these trains to run up and down the Red Line until at least May 14th.
ALSO, here's another review from Tracy Swartz at Red Eye!