>i want to have an about box in my application. is there any ready about box i can just download?

Hey, look at it this way: this is one of the very few places in an app where you can almost completely use your own "artistic license," to create a small and very colorful modal form. You just put version, author, date, devtool, stuff like that, and then a nice big fancy (animated, if desired) image that takes up most of the space. We make our own fancy About images, anything that kind of goes well with the app.

The idea is to make them so nice, all the users want to do is admire your "About" screen and not do any work :-)