it doesn't matter to me if canada gfot the new store or not. the point is SONY should have told us that we would be having problems today and that they was doing something to the network. but they didn't thats the point here.
I'm in Canada
Could not sign in before 4.31, and there is no new store in my region at this time, but for it to be down like this seems likely that the new store interface is being loaded.
I can log in to the store on my Vita however so yes this is maintenance related.