After upgrading to 1.1.2, the SysInfo shows: CPU Frequency: 412MHz, up from 400MHz Bus Frequency: 103MHz, up from 100Mhz User memory usage also seem to be increased, presumably by reducing the system memory use. I used to get 86M free memory, and now 94M. I also experienced significant speed increase for running weDict application. I have a couple of dictionary file that are over 20M big. It used to take 4 seconds or for it to look up a word for the first time, and now only less than 1 sec waiting is needed. So overall 1.1.2 significantly improved performance for me. Maybe Apple overclocked it?