Tiger Snapshots: bringing early feedback into the release cycle...
The intention of the snapshots are to get early feedback into the final stages of releasing Tiger. This approach has proven very successful in many communities - it is particularly common in the open source community - and I am particularly happy that Sun is embracing it in a number of product families. From my engineering perspective, it is nice to see this tendency: it can only lead to improved quality in the products.
Here are some other "early access" releases from Sun that I am aware of:
I'm surely missing many others, but this is certainly a good trend.