Q: Does the Asus Z Stylus fit or any similarly sized stylus fit the pen holder?
Q: Does this open 180° without shutting off because of the on/off sleep/wake feature
A: Mine does without any issues.
Q: Do any of the cut outs on the case interfere with any buttons, volume, home, etc?
A: They don't really mess with anything but maybe a little if you're not looking at those are…
Q: Does the z500m recognize the procase stylus as a pointing device?
A: yes, in the respect that any rubber tipped stylus does, it is not anything other than that…