Don't guess here, unless Shimano decides to change to a public ANT+ protocol stack no third party will connect. Shimano is one of those companies that only does what will benefit Shimano (as is their right as the world's largest bicycle component manufacturer) There are already several apps that use the ANT+ protocol for both IOS and Android, none will incorporate Private ANT. ANT+ is public and Garmin's recommended way of interacting with multiple devices and software platforms.

If you feel the need to verify, go to ThisisANT.com and read the specs published there. http://www.thisisant.com/developer/a...tplus-defined/