There are ANT+ phones from Sony Erickson but not many are on the market yet w US carriers. There are Android apps that already work w these phones once they make it to market. I posted on this about a week ago.
TI is producing a chipset that allows for ANT+ connectivity which is driving the product.
You can read this and find other articles on this.
http://www.thisisant.com/pages/speci...on-ant-devices
Alan