Thomas
great info above, quick follow up question for you.....
I have always wonder why is Google using the "640px" in the ?
many people have been asking the question lately if 640px is an old example or is it the required size? (phones are larger nowaway)
the website I manage are non-responsive ocated in a /mobile/ folder such as: http://www.example.com/mobile/page1
and our mobile size cut off is actually 1023px.
.... should we be using 640 or 1023px in the rel="alternate" tag?
thank you!
