Editor’s note: What does the iPad have to do with cloud computing? Glad you asked. In this guest post Marc Benioff, chairman and CEO of salesforce.com, explains how liberating the iPad will really be. The first piece of software I ever wrote was on the TRS-80 Model 1. It was called “How To Juggle”, and it had 4K of memory. It was my version of “Hello World”, what every programmer first writes on a