IPython notebook is actually one of the most interesting developments not just in the python world, but in computing generally. It's the first step towards the fully graphical shell on the internet that many of us have been looking for, whether or not we realize it.<p>Being able to weave together text|markdown, tabular data (in almost any format you want) and images ( whether from matplotlib, raw captures, or synthetic assemblies ) in one environment is very powerful.<p>I suspect that with some additional tools IPython notebook will become the integrators workbench <i>par excellence</i>, useful in many contexts.