I love this game, its very fun to paly, the animation is really neat looking and the horses are adorable. But it can be very laggy and sometimes when I breed the horses the foals turn out invisible, then when I try to delete them the game crashes. Also when I edit the pedigrees and then close the game it doesnt save all of them.
I also think it would be cool if you added an Aussie saddle to the game, and more breeds of horses; Icelandic pony, Norweigan fjord, Quarter horses, Andalusians, Morgans, Tennessee walking horses (with special gaits :) ) , Norikers, ect.
Also it would be cool if skijoring was added to the game, and polo, Fox hunting, Dressage, with a handful of new controls for the fancy movements required of dressage, and roping would be awesome :D