CGMiner is nearly the guaranteed end of the 51% vulnerability

[NASDAQEnema]

Mine either algorithm as you like.
Monitor changes in hashrates.
Trigger defense mechanism either when too low or too high.
Jump chains to defend.

So much for the so called flaw.

We're almost there.

We can tolerate monocoin nutjobs causing havoc.

Or we can design useful chains with abstract features and exotic properties.

[ElectricMucus]

riiight  

[NASDAQEnema]

riiight  

All this centralization on one coin is making people paranoid and desperate.

Hashrates can be combined and merge mined. Any chain that has the same algorithm can have the same power to it.