For example, here is what happened today (2:13am on 29th/Oct/2012) if you click on 'Schedule service' or 'Check service status' from the new shiny Microsoft Suface website:
Oops , this what we get on https://myservice.surface.com :
Don't they have website monitoring or WAFs over there?
It looks like the problem is in the https part of the surface.com site (the http redirects to a microsoft.com url)
Now here an interesting twist, I was going to recommend that they used ASafaWeb but all looks good from its point of view (note how the main request returns a valid page)
so I though that maybe the problem was with using Chrome, and IE would work, but no such luck, IE shows the same error:
There is definitely something interesting going on here, I wonder what it is :)
The realisty is that it is really complex to provide online services. Its an environment with very little margin for error, where every small detail counts and semi-real-time feedback/reaction is really important.