It looks like your headed in right direction and I'm sure you probably already had these suggestions but here I go:
Screen Resolution, ability to change screen resolution to fit each individuals preference.
Swing options, I hope your going to give us the option to choose between swing methods like there are in flash.
Menus, there a little hoaky right now...looks like a game setting for 10 yr olds.
Graphics, are they going to stay the same or are you going to enhance it to look like real play?
Camera Views, it looks a little bit limited are you going to add some additional views to each hole.
Wind Direction Indicator, could you make this a little more visible since it is a crucial factor in game.
Distance markers, are you going to put distance markers like there are in flash?
I'll try it again in another month and see what improvements you have made and remember out of the 10,000,000 registered players I'm pretty sure a lot of us are up there in age.
Thanks for the initial effort