joulesbeef: I like that you are standing up on this one. I am a little pissed off but I just see it as natural selection and evolution. At least this exploit is not a 0day traded in closed circles that we didn't find about months after its been in a wild...
The next generation of alternate block chains will learn from the current generations and we will likely see multi-chaining and licensed mining (with licensed hash rate) in the future in addition to these new security features. It may even be possible to have a steady block rate but fast transfer of coins.
I would like to see licensed mining applied to the problem of helping people pay off their green power generation equipment with the introduction of ecocoin. Mining is licensed and you must prove you have bought solar panels or wind turbines to get a license and your mining rig must be hooked up this equipment and not the traditional grid. e.g. if your solar panel produces enough to run a dual FPGA you are licensed to mine the mhash that dual FPGA produces. There will be some kind of smart meter to verify the solar panels are being used with a backup of "dob in a mate" if people start gaming that. If people are found to be gaming it they lose their license and are told to go back to mining BTC.
As it grows to things such as molten salt solar and wind generation for 24 hour power people will be able to generate eco coins and sell them to pay off their gear making the time to pay off the green energy much faster than it is currently.
People may occupy sections of otherwise dry barren desert land and setup parabolic and molten solar or geothermal there for the purpose of generating ecocoins. These coins can be sold to deliver ROI. These could be setup in developing nations and the proceeds used to help feed starving people such as in Somalia.
Their use as a currency will allow them to have a means of exchange to develop their local and sustainable economies.
Men that are brave enough to implement this (in underdeveloped nations) could find themselves with multiple wives if they so desire