In a previous blog entry I wrote that JE worked on Android but that the DPL didn't work because of a lack of support for various methods (e.g. Class.getAnnotations()) in the Dalvik JVM.
I have verified that the Android 1.5 (and presumably recently released 1.6) SDK supports JE and DPL. JE/DPL on Android adds a major chunk of infrastructure to the Android platform in that a pure Java transactional POJO datastore is now available.
You can expect to see stepped up support of JE on Android in the near future. For instance, we plan on making je-android.jar libraries available so that developers won't have to compile the JE src under Dalvik.