Mr Light wrote:

They don't even meet until the final page? Seriously? 
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Final panel, actually. First part of the book "establishes" the 616 Spider-Man and him getting to the device that sends him in to the Ultimate universe, then we spend some time with him exploring/discovering the Ultimate universe where he has an encounter with some local color and eventually Miles.
I thought it was good, you might need to "establish" things before jumping into it. I wouldn't be surprised if the next issue was from Miles' perspective up to the point he meets 616 Spidey.