I have a suggestion on how to make Achievements better. Add the ability to Rate Achievements. This will help Dev know what kind of Achievements people like/dislike what they come up with them. For Example Forza 5 Painting by Numbers (Earn 1,000 credits from the community using your paint jobs) and New Wallpaper (Get 50 Downloads across all of your shared photos.) Achievements were you had to wait for other to do something to get the Achievement need to die off. I had to go on forums to ask people to help me out. I think that if we were able to rate achievements some of them would go away.