The Republican rules committee has been burning the late night oil trying to adjust the rules on delegates.
The latest word is the final decision will go back to the states to decide. If the state wants them bound to their pledged candidate for so many rounds then so be it. If they want to leave them unbound, so be it.
This all came about as some states who were won by one candidate (Romney) had all their delegates taken over by Ron Paul delegates at the local state convention. The party thought this was thwarting the will of the majority of people who had voted for Romney.
The new rule goes back to the states to let them set up a better system (If they want the delegates bound in relation to how the election went or not).
The other new rule allows the national party to adjust their own rules if they get over 75% on a vote while out of session (previous to the next 4 year convention). It has to be 75% of all members. Not just members present. That is a very high bar but allows them to make changes if some real controversy comes up.