Even for the non-disabled, the system could prove useful. The electronic notepad would now be in video. Of course textual annotations could be added in. For example, you might take down a picture of someone together with a text label - their name - for later recall. That would free up some space in your brain.
Reliance on a machine is not necessarily a bad thing. For example, a pacemaker is a machine, and there are many people who rely on such a machine. Of course forgetting someone's name is't usually as catostrophic as heart failure.