What is the rest? I.e. how can one access this, which to me seems to be a site on the Web (a "web site", to many), other than "on the web"? I'm feeling my age, here. :|
I guess what I'm trying to say is that we couldn't fully implement this on mobile due to keyboard restrictions..
Then you mean desktop, not web.
If it makes you feel better I'm part of Generation Y and I'm not sure where else one would see a 404 besides on a "website".
Sometimes I go to my nightstand and my phone isn't there, "Four, Oh Four!" Other times I get there, but I hear from downstairs, "Three Oh Two, dear, it's down here on the coffee table." I run downstairs and grab it, relieved, "OK!"