One thing I like about my UX-50 is the ability to turn on bluetooth and sit in the airport/bus station/mall/etc and go toothing (or bluejacking). With the keyboard, it was easy to chat with others via bluetooth or confuse a passerby with screwed up message.
I was hoping to be able to do the same on the Z, but I only see the option to send contacts in the addressbook via IR. Anyone know of an application that would allow me to do this? Do the tkc PIM apps have this functionality?