I created this to show how I use free apps to enhance my android. not sure the stats, but i bet there are far more apps for iphone then android, but i love these that i use and they are all free.
There is one i've yet to test clipper, to enhance the copy and paste facilities on the android. think mine is the htc hero.
Please feel free to email me with your faves (preferably free): firstname.lastname@example.org
Please note the app logos/icons are not my own and are taken from androlib.com or android.com/market/