Here is Dalvik with Jit from Froyo adapted for Donut. Download dalvik-jit-for-I7500-donut.zip from Sendspace.com - send big files the easy way Expect around +50% improvement (that does NOT mean it goes x2 times faster). You have to push everything in /system, and better adding "dalvik.vm.execution-mode=int:jit" at the end of your /system/build.prop, even if it is enabled by default. Otherwise, an update.zip to apply using recovery is available here: Download jit by jakax.zip from Sendspace.com - send big files the easy way (by BEAUTY and tested by Seandk) As internal structures have changed in Dalvik from Donut to Froyo, new odex files are provided (from stock files). At first boot, all applications will be rebuilt.