I am unclear on the function of the M-477 checklist. We had downloaded it along with the N-400 form until we found that everything can be done online.
However, the checklist is never referenced in the online application--nor in those instructions--and yet there are a few items on the checklist that were not addressed online.
I am thinking the checklist may be meant to supplement the hard copy application method but that the INS folks simply failed to get it all synched.