No GPS indicator.

[aokusman1]

Why would Apple not gives us a way to know that the gps is connected ?

 

[Mac Guy]

How do they do it with the phone?

 

[pmconaway]

I don't think they do. Specific apps may display a dialog box stating it can't find the GPS signal but there isn't something that appears on the screen like the airplane mode icon that says you can't connect to GPS.