<snip>
Is there a fix around to get Scribus onto an Android tablet without rooting? I did not see a download on Google Play. Has anyone used the portable version connected via a usb port?</snip>
At the moment, Scribus is not available for Android (or iOS, Blackberry, etc.), nor are there plans (to the best of my knowledge) to port to these platforms.
The portable port is for Windows only, but also works with wine and its variants, so IF you could find a wine-like android app, you might be able to run it that way, but there's no guarantee.