I prepared presentation slides with an overview of Sun Tools. I haven't really seen any such slides published online so you can download them. They cover all four Sun Tools (NetBeans, Creator, JSE, and Sun Studio) and discuss available features and future strategy. There is a bit more of focus on C/C++ because I will speak in front of a mixed crowd of Java and C developers here in Poland.
Sun Tools Overview Presentation - ODP
If you are interested I also prepared slides about evolution of Java SE (Mustang, Dolphin) and Java EE:
Java SE 6 & 7 Roadmap - ODP
Evolution of Java EE and tools support - ODP