network of autoblogs and different IPs ?

How important is to have networks of blogs on different host IPs ? or it doesn't matter for search engines and you can host 50 autoblogs on one shared IP ? (with different domains of course)

Same Question. I want to know.

I run a test few months ago on 1 shared IP address and multiple IP address on my blog network with diff top level domain name at the scale of about 10.

The result:
Multi IP address hosted blog can interlink and have SEO effect way higher than 1 shared IP address.

Your keyword rank is higher when you link it to multiple IP address rather than one IP address.

The only benefit Multiple IP address have is for SEO purposes only.