SSIS 2008 Execute Package task dynamic configuration

SSIS 2005Execute Package task doesn’t have properties to support dynamic configurations. Here are a couple of scenarios:

1) Package could be executed on its own. In such scenario it is easy to make the package use an external configuration file.

2) The same package could be executed as a child package. In this case the Execute Package task doesn’t have properties to support configuration file location for a child package. Also, built-in expressions don’t support it.

I am talking about functionality like using /CONFIGFILE flag for dtexec.exe, but implemented as a property for theExecute Package task.

What about SSIS 2008? Any planned or already implemented improvements in that area? Does Execute Package task support passing dynamic configurations to a child package?

Regards,

Yitzhak