1) "Always On" data recording that keeps on-screen and ride file data up to date and accurate, even during periods when the iBike app is exited (phone call, change music, etc). Even when the iBike app is not running, the iBike electronics record data in the background. Then, when the iBike app is resumed, the "missing" data is inserted into the ride file, and the on-screen stats are updated. The Always On feature requires a complex interaction between, app, electronics, and firmware. It is pretty cool; your iBike app effectively operates in a multi-tasking manner, even though iOS does not support app/accessory multitasking

2) For iBike Dash + Power owners, tilt calibrations for multiple bikes are now memorized in the profiles. So, you won't have to do a new tilt cal every time you swap bikes.
There's also a new implementation of Wireless Scan, which is faster and more reliable, and also some other bug fixes.