Is atheism a scientific perspective?

[robvalue]

Considering theists generally already make the first assumption, I don't know what else needs to be said.

I didn't read through all of his rabble but given my experience of ID arguments, I presume that his, like most of them, is something along the following lines:

P1. Creation rationally requires a Creator just as Information rationally requires Intelligence.
P2. Creation contains Information.
C. We are thus rationally required to posit the existence of an Intelligent Creator.  

... How close did I come?

You have gone a bit above and beyond there

It's more like this:

Stuff looks designed to me, therefor it's designed.