I just dont get this
Why put your Zigbee transceiver in the SIM? Sure, a zigbee enabled phone might be useful ... but why the SIM?
I suppose with the possibility of adding Zigbee to older phones simply by popping in the new SIM and installing new software on the phone, a suitable user interface could be created, but will phone manufacturers do that? or would they prefer to sell you a new phone?
You dont have to be a marketing genius to work that one out. If Zigbee is going to make its way onto phones, it will be by dedicted phone hardware, if Zigbee SIMS do start to appear I think it unlikely that older phones will get firmware upgrades to suit.
Also, dont forget the telecoms market is highly cost sensitive, a more expensive SIM is hardly likely to be snapped up with glee by the providers as a universal offering.
Sorry, sounds like a dead duck to me.
I can see Zigbee enabled handsets catching on right after Zigbee enabled smart appliances .... like .. not real soon now.