Wow! FUDfest 2014!
Certainly a novel approach to an article - simply trawl the vendors for their PoVs and not offer any analysis.
Whilst it is fun to watch the Elmers spewing their bile, the first thing to bear in mind is all these guys (and that includes the IBM responses and Mr IBM Marketing Drone PowerMan) is that what you need to do is look at your requirement and THEN ask questions. The competition will love to compare the 840 to real arrays as then they can point out all the features they say their array gives you but the 840 does not - all fine if you actually need those features, but "feature-sell" if you do not.
I've used the TMS RamSAN devices on hp-ux RAC clusters as simple, superfast solutions, with a TMS system per node to provide direct flash. That is because the old TMS devices were "dumb" flash. They were definitely not smart arrays. The new IBM 840 seems to be more of the same - a dumb flash device - as it seems to require SVC to do anything smart. So, if your requirement is just local, superfast flash for an application, then it would seem a viable option, and IBM will probably price it competitively, but if what you actually need is a tiered array with a flash tier then the 840 does not seem to be the right option, even with SVC.
So, before you speak to IBM or the competition (and, TBH, just avoid PowerMan completely) work out what you actually NEED in your environment to make your applications work, not what the salesgrunts want to sell you.