Overall, the update seems to be smooth and offer a easy transition from Leopard Snow Leopard. It also includes numerous good news for some users:
Rolland noted that the new Java 1.6 is compatible with Core Duo-based Mac, while so far it was only supporting 64-bits capable CPU-based hardware.
Matthieu could install Windows via BootCamp on a Intel SSD X25-M thanks to Snow Leopard.
A new version of BootCamp version 3.0 is available with Snow Leopard. It brings new functions, such as writing on HFS+ volumes from Windows and an improved management of the hardware, especially the trackpad.