People who were there at the hadoop summit recall the three parts to my keynote -- entertainment (watson), education (industry use cases we are seeing) and philosophy. I have talked philosophy before, and also entertainment. So let me focus on education (which some not to be named folks like JF called "boring" (JF, you know who you are :) but others like Joe Reger Jr. specifically asked for..
So here it goes. My view is that we are seeing enterprise use cases around the three V's -- volume, variety and velocity, with variety being the most important, and volume not that much so (hence my disdain for the term "Big Data", but that ship has sailed so no sense in being grumpy about it, unlike "data scientist" which is still not an industry term, so maybe some grumpiness from me and others will reduce its chances of becoming an industry term :)
and along the three dimensions, the ~100 engagements that IBM is engaged in are exhibiting various characteristics (edit based on comments received: this is not exhaustive, other industries such as telco etc are also using this extensively):
I will post later, if you all are interested, the top use cases that elaborate on column 2 above..