Flixter over at XDA forums has successfully removed all the AT&T bloatware without even rooting the Atrix.
"I have successfully removed everything that At&t added to the phone including At&t Barcode Scanner, NFS Shift demo and Blockbuster, Etc. No root was needed for this. Hope this makes everyone happy." The only thing that wasn't removed is the DLNA app which can be useful to those with compatible TV sets.
At&t Bloatware is Removable - xda-developers
"I have successfully removed everything that At&t added to the phone including At&t Barcode Scanner, NFS Shift demo and Blockbuster, Etc. No root was needed for this. Hope this makes everyone happy." The only thing that wasn't removed is the DLNA app which can be useful to those with compatible TV sets.
At&t Bloatware is Removable - xda-developers