No, you can build a new application using the engine that powers "Safari". This includes page rendering, and more importantly JavaScript execution. The latter

No, you can build a new application using the engine that powers "Safari". This includes page rendering, and more importantly JavaScript execution. The latter is important simply because the terms of service only allow 3rd party code execution using Apple's "interpreter". [ http://www.macworld.com/appguide/article.html?article=138409 http://www.macworld.com/appguide/article.html?article=138409 ]