So, I know a lot of people are confused or don't even know what the hell is going on with this proposed bitcoin fork.
My biggest question, is, if the fork is implemented, how will 1 side of the fork be differentiated from the other side? Will all previously mined bitcoins become obsolete so to speak? Will it require a new bitcoin client and bitcoin blockchain? What is the limitation of the current block size that would require a bitcoin fork, and will this be the last time it is changed? (obviously some of these questions cannot be definitively answered, such as last time it will need changed) Will this fork increase the total number of bitcoins to be made?
When the fork is coming and you do not update you will be automatically on the MPcoin chain with the smaller blockchain - and everything remains as it is now for you. When you do update you will go to the Gavincoin chain with max. 1000GB storage use in a year on your system.
You can actually do both and have the Bitcoins twice. (once on Gavincoin and once on MPcoin)
Different exchanges may support Gavincoin, Mpcoin or both - basically Bitcoin will end right there and the chaos that was promised by Gavin will become a reality.
Will it be the last change? No, at least not on Gavincoin. Mpcoin could well remain unchanged and thus be the more integer blockchain. On Gavincoin you'd need to brace yourself to hardfork at least twice a year as they intend to make hardforks a habbit. (next time for sidechains and so on)
About having coins twice:
I think depending to who you send coin on either of the chain they could broadcast the same transaction on the other chain and thus taking your coins on the other chain. So using Bitcoin becomes totally unsafe. I personally predict Mpcoin will survive (with much smaller cap than is now) and Gavincoin plummet to zero after being pumped. (my personal prediction)
In any case it is recommended for noobs to stay away from bitcoin alltogether and use altcoins like Litecoin, Dogecoin and others instead to remain safe - or if you must hold bitcoin for the fork: don't move them afterwards. It will be epic chaos and could sink bitcoin, and i think it will.
I lol'ed.
Taking coins from the other chain? Sure, I can do that, just let me grab my magic, invisible miner to show you how.