I passed the 287 exam today with a score of 85%. This is definitely the most difficult of the series of exams for ICED. The level of difficulty was a little higher than the sample test. Areas such as connection pooling & datasources, JMS configuration, WTE configuration, classloaders, profiling & tracing were covered with a variety of questions (apart from regular J2EE stuff). Kushner's book is a good resource.