Yes, it is possible.  You can add a new data connection linked to an xml
document (generated with your first form A).  That document is now a
secondary source to your document B.  You can use data from that seconday
source by code or you can drop the fieds as controls on your form.
The link to your secondary source will be refreshed each time you open your
form B.
This will not replace the flexibility of storing the data in a DB, but that
may do the trick for you.

Franck Dauché