ArcanePartyBars 4.0
What it does:
Have you ever wanted to see what your Party Members are casting? Now you can!
ArcanePartyBars is a world of warcraft addon that tracks party casting via Telepathy & displays it right next to their party frame.
NOTE: This mod has been discontinued and out of date.
Documentation here:
www.wowwiki.com/ArcanePartyBars