When I try and follow the link to the TI sensor tag iOS app
http://itunes.apple.com/app/ti-ble-sensortag/id552918064?l=nb&mt=8
as shown on this page
http://www.ti.com/ww/en/wireless_connectivity/sensortag/index.shtml?INTC=SensorTag&HQS=sensortag
I get the message:
The item you've requested is not currently available in the U.S. store
Has this been withdrawn or is the link incorrect ?