No way to back up data.

Decent charts but there is no ability to navigate to a point. Tracks are recorded and there is good Active Captain integration, but there is no way to back up user generated comment. Garmins position is that BCM is a planning app and any data a user wishes to make permanent must be up loaded to a Garmin Wireless device, otherwise an iPad swap will result in loss of content. Not allowing in app back up is a serious oversight in my opinion.

Threepenny Opera about Garmin BlueChart® Mobile, v1.4.0