Dear Garmin,
Would love to see more tennis related features, many of those should be just category updates and should not impact your core functionalities, but it would be a nice gestures to many of us who are tennis players, for example:
Activities - add Tennis ( I can't see there are more people sky diving then playing tennis )
Gear - Add Tennis racquet ( instead of others ) and additional fields to track tension, string, etc.
App - to track time played, GPS, scores, etc - this may be too big of a wish item
these will be a great start, any other suggestions?
