I just left for much better opportunity, after being with GE Power Services (at a Digital Hub) for a year as our group was preparing to transition to Digital at any moment. Worked on PREDIX the whole time and can backup what you guys are saying.
The many millions of savings and revenue that Digital was committed to wasn't even remotely feasible. Our product (FieldVision) was 8 months away from going live and the execs were already claiming $150MM savings for the PAST year.
It could BARELY (and I'm being generous) "integrate" with an in-house ERP system and they thought it could be sold to external parties running many different types of ERP systems. Aside from GE, I've worked 12+ years for software companies, including Silicon valley Startups and it was obvious GE didn't have the culture of a software company or the ability to sell and compete in that market.
Sorry, Nerf gun fights don't really qualify, even if Google poaching GE talent.
Still, I was surprised Jeff is on the way out less than a month later. But, in retrospect, I suppose I shouldn't be.