Facebook has known for some time now that its app-monetization process was more SucksVille, than FarmVille. Now, it's just announced that it's rolling out the new silky-smooth two-step payment process. This means you can stock up on Farm cash sans typing, and forget about the real cost until your mobile bill turns up. Currently most US and UK networks are on board, but more international operators will be added as soon as they can. If you already have payments integrated in your app, you should be good to go, but if you don't, and you want a slice of the pie, there's an API and instructions via the source link.