And in general, how goes the fight for true decentralization?
Not too shabby. The potential of Mr Spreads anti-pool innovation has been noted, borrowed, adopted, adapted and is now obliquely traceable via reference #34 to Ziftrcoin (*) in Andrew Miller et als' preprint paper (PDF)
Nonoutsourceable Scratch-Off Puzzles to Discourage Bitcoin Mining Coalitions.
So there ya go.
Cheers
Graham
(*) Spreadcoin repos was created well before Ziftrcoin.