Fishing App for your phone

Yesterday and today I was at TV convention in Vegas and it looks like my TV program will soon be airing on a new TV network on Direct TV, I'll make sure to fill you all in when it happen. While it the convention I ran into several companies that make apps for mobile phones. They both suggested I make an app for fishing and my TV program. What i'd like to know from all of you is what you'd like to see in a fishing app? I'd like to have your input. Thanks!