Just to adopt the latest service release, my MP3 Manager Eclipse RCP demo is now based on Eclipse 3.5.1. Compared to version 3.5.0 there is no new functionality, but there is a new bug :(. The splash handler does not work anymore, I have created a bug (291920) already.
Addition: Bug 291920 is fixed. SplashHandlers need an additional splashHandlerProductBinding extension. I just added one and everything works again.