24 hours, that is an interesting concept.
I have the Extended battery as well, but I never managed to get more than 12 hours, regardless of how little I used it.
I do notice a huge battery life improvement since the 2.3.3 update.
When you get your phone rooted and improved, would you mind sharing how you did it?
BTW, Moto won't like me for sharing, but I talked to their customer service to complain about my battery life and got them to send me an extended battery for free, it just did not come with the battery door. This was after they sent me a new stock battery for lack of battery life and it still did not improve.
I then went to Verizon and told them of my predicament and they gave me $10 credit on my account to balance out the $10 I had to spend to buy the door from Moto.
Just saying folks, sometimes you ask and you shall receive.