Zite is a magazine app I set up with a section on fishing and fly fishing.
Cabelas recon fish is new. Have not played with that one but I like the sun moon data on it.
Amazon app nice for price checks on fishing stuff
Gas buddy to get best prices heading to or from lake
iFishing is an amusing game
Definitely like the navionics maps for looking for new spots
Dropbox for file storage such as photos or PDF scans...