It was never planned.
In post http://www.jboss.org/index.html?module=bb&op=viewtopic&t=9608&postdays=0&postorder=asc&start=10, dsundstrom says that CMP for multiple tables is "on the list for JBoss 4.0".
If it is not, could you give an example of how to implement entity bean that pulls data from multiple tables.
As an example I have 2 tables:
Table name: tblUser
Fields: username, addressId
Fields: addressId, address
I want my entity bean to contain 2 variables: "username", "address".
Use BMP if you really need this in one entity bean.