This is fantastic news - I spend about two-three hours a day in iPython. It's completely replaced my tool chain of awk/sed/wc/grep that I previously used to do

This is fantastic news - I spend about two-three hours a day in iPython. It's completely replaced my tool chain of awk/sed/wc/grep that I previously used to do analytics on various files - and not only allows me to do much more complex analysis, but also maintains "state" in a visual way so that I can quickly hop through a number of file load/analysis/report cycles. Being able to do this interactively is going to be a huge win.