Speaking of kosher bakeries on Murray Avenue, there's also Simple Treats. I don't know if they do babka or not.
Have you called Prantl's in Shadyside?
Thanks for the post, btw. Googling led to this Times article about the disappearance of "The Last Babka" on NYC's Lower East Side: http://cityroom.blogs.nytimes.com/200...
I used to live in Squirrel Hill and there is a great kosher bakery on Murray Ave. by the name of Rolladin that sold babka. I haven't lived in the burgh for a quite a few years but my family does so I visit a few times a year and still go to Rolladin's every so often - just not sure if they still sale the babka.