Incipio has a "Feather" case and a DualPro coming. If any of my customers pick them up, I'll let you know where to buy.
Otherwise, just order from their website.
Z3:
http://www.incipio.com/cases/smartph...-z3-cases.html
Z3 compact:
http://www.incipio.com/cases/smartph...act-cases.html