My wife has a play going up at the Teatro Nuovo Montevergini. It's a wonderful, all-monologue show called "In Her Shoes," and this is the show's Italian premiere. Previously, this play was translated into Italian by Valter Cassini Press — so if you can't make it to the play, pick up an Italian copy, under the title "Accessories"!
(I'm sorry to say I don't have the dates/times for the play itself in Palermo...and my Google searching in Italian is not so "fantastico," so I can't find it. But! If you're in Palermo, I'm assuming you can find it lickety-split!)