Since its launch, renegade developers have been working to make the iPhone a Linux workstation, porting tools to the device. And why not? It has enough RAM and hard disk space to make the work worthwhile. “My iPhone has 16 GB of disk space, 128 MB of RAM, a 600-plus MHz processor and a much better display than my original computer, and it has Darwin open source ported to it,” said Brian J. Fox …