I see that we ship a datasource out of the box and is available at java:/H2DS

12:59:31,816 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-4) Bound JDBC Data-source [java:/H2DS]

Would it be better to make it available at java:/DefaultDS? I am sure there are many quick start/example/demo applications out there which use java:DefaultDS for such simple examples. It would make it easier to use those examples in AS7, without having to change them, if we stick with the older name. Thoughts?

I would say all of Hibernate tests and examples use it. :-)
And I know I do every time I need DS in any form.
Hence my vote would be, yes, please bring it back.
Or what was the reason to change this in the first place?