Fedcoin is obviously a dumb idea. It's effectively the same level (or worse) of why-are-you-bothering-with-a-blockchain as doing a gold or silver "backed" cryptocurrency. If you have a fundamentally centralized system, then adding a blockchain just makes it more complex for no reason. Just fire up some servers and make a good API instead.
People *still* don't understand the problem that blockchains actually solve.
Yep, we are still so early.
Frankly, I'm amazed at the low level of sophisticated analysis coming out of IBM regarding Bitcoin. But then again, I bet much of it is being driven by Richard Gendal whom I have been even less impressed.
Perhaps IBM is a quintessential example of a big corporation who's benefited so greatly from inflation that they've been blinded.
Well, Richard Brown does understand the spectrum of decentralization, at least (eg, he acks that Ripple is not like Bitcoin in terms of credible decen, etc). My own feeling right now, though, is that there's far less room for middle-ground projects (wrt level of decentralization) than people think (incl Mr. Brown). Essentially, I think people will begin to realize that if a system (eg Fedcoin) fundamentally cannot exhibit "pure" decentralization like Bitcoin, it might as well just be a centralized application and not bother with the blockchain stuff. Too many people think you can have both worlds, but I don't think that actually makes sense. All you get is the worst of both, not the best.
The other sort of decentralization you can do (such as with practical byzantine consensus - which was effectively solved in 1999) is for redundancy, not explicitly attack resistance or credible anonymous decentralization. So I think you get three main buckets that have utility longrun:
1) Centralized systems. Like fiat money.
2) Redundant systems, that run some sort of practical byzantine consensus (pdf) alg, or alt-consensus like Ripple. Something which doesn't make a good independent money at all (since its "rules" couldn't be considered credible), but which might be fine for some other uses. This stuff, to me though, is thoroughly in the not-that-interesting pile, since it basically amounts to an evolution in ways to redundantly link server clusters. That's it. The guys running HyperLedger and Eris will spout off about how much more it is, but I really don't see. As Vitalik notes, this stuff is just a "friggin database technology". And for this class of system, that's *all* it is.
3) Bitcoin-style pure credible decentralization. For when you can't trust anyone. Money, permanent global record of authority, etc.
[disclaimer: above thoughts are very rough....I'm in a hurry right now]