Interesting. If Dashminer gets good, fast X11 kernel, Dash community will have to react to avoid mining monopolization, 51% attack, masternode discrimination and all such things. They can put bold bounty for even faster kernel and/or DDOS dashminer pool. Or coordinate block withholding attack against the pool. Seems that with open sourced miner with open protocol and PPS payout from the pool it's impossible to countermeasure this attack, so Dashminer will have to close the protocol, which is almost impossible without closing miner sources. Which will violate GPL, because it's sgminer after all.
All this is pure speculation, of course, I'm watching how it will play out