[dartho]

You would need to edit the Add Posted By Mobile Message to Post plugin and change the hook location used to one of the others available.

The line you want to change in that plugin is:
$template_hook['postbit_controls'] .= $templater->render();

Change the bit in red. A quick check of the postbit template shows other hooks available listed below. None of them look like they'd do exactly what you want, but give it a go:

postbit_userinfo_left
postbit_userinfo_right_after_posts
postbit_userinfo_right
postbit_messagearea_start
postbit_signature_start
postbit_signature_end
postbit_controls
postbit_end



You could also edit the posted_by_mobile_device template to make changes to what is displayed.