Totally agree, even overclocked to 850, 900, or even 1100 MHz, I am getting great perhaps 25%longer battery life than before pr1.3. With overclock and some fairly heavy usage I can go about a day and a half on 1 charge. Used to be dead by about 9pm on first day without some conservation.

As for other improvements, experience is generally smother and more polished. Now all I want to do is figure out how to dual boot to Meego!