The lowrance app is called 'GoFree Link'. To use it, you connect the iPad to a wifi hotspot that the HDS-Gen3 unit broadcasts. The first time you connect, you have to enter a password which is available in one of the menus on the HDS. After the initial connection, you don't enter a password.

The FishHawk screen shot is also an app available for iPhone and iPad. It operates using a bluetooth connection and is an 'out of the box' feature on the 4xd model (the newer one that shows depth in addition to temp).

The weather radar screenshot was just one of the many apps available to display NOAA radar. The problem I see with it is it requires a 'real' internet connection. Once I connect the iPad to the HDS, I lose internet and would lose the ability to pull up a radar map unless I disconnect from the HDS.

I'm so fearful of getting caught offshore in a thunderstorm producing 60mph winds and getting swamped that I am considering adding the Sirius XM module to the HDS. I'm not sure I want to rely on wireless internet for weather anyway. We had a close call last June that cemented in my mind that it's more important to be aware of the weather than any trolling program.