[gajomi]

I also would be very interested in seeing what could be done with IPython + Light Table.

I currently do most of my exploratory work (which is in turn most of my total work) in the IPython Notebook and it will be interesting to see what Light Table can do beyond what the notebook does (for starters, I imagine it will have a more refined approach to Javascript hooks for visualization and the like).

I will point out though that the only thing that gets posted to the browser in the IPython Notebook is an objects __repr__. So, unless you are looking at raw dumps of tens of gigabytes of data, you shouldn't have to worry about browser memory limitations. The IPython backend of the Notebook can handle just about anything that your standard python interpreter can handle. It could even be an EC2 instance or cluster resource (here is one example: http://www.nature.com/ismej/journal/v7/n3/full/ismej2012123a...).