Sub-Domain Home page List Category Posts from Main Domain

Hello,

I know we can have a Category page for posts published under the same domain Site.

I would like a subdomain Home page to display posts belonging to the same Category (or Tag) at the main Domain.

I was able to get a Redirect plugin bring up the Category filtered page at the main domain, but it also completely Redirects the user to the main domain.

I want the user to stay at the subdomain and get the Category filtered posts from the main domain page while staying at the subdomain home page.

To be more precise, I want a visitor of:

http://about.becomebecome.com

to see the content of:

http://becomebecome.com/category/about/

while staying at:

http://about.becomebecome.com

Is this possible?

Thanks