"The Bullet gem is designed to help you increase your application’s performance by reducing the number of queries it makes. It will watch your queries while you develop your application and notify you when you should add eager loading (N+1 queries), when you’re using eager loading that isn’t necessary and when you should use counter cache."

"In the golden age of BASIC, it was easy for anyone to write a program. Now we offer you this exact same capability, but this time with the advanced features of the Nintendo DSi™ system… Many programs are included to ensure that you can fully enjoy using BASIC. The included programs were also written in BASIC, so you can add new features to them in order to enhance your games. You can also take the programs and data you create and convert them to QR codes that can be shared with friends who also have Petit Computer on their Nintendo DSi systems. (Programs included: 12 feature samples,5games, a character picture tool,a background screen creation tool,a graphics tool,and a picture-drawing tool.)" Interesting – especially the music-creation stuff, as Create Digital Music proved.