Currently looking at building an ecommerce site which will be split into a main site, accessed via www.domain.com, and then looking at, if possible, separate sub-domains for ecommerce areas, ie products-a.domain.com, products-b.domain.com.

The same shopping basket is to be accessible across the main site, and the various products site.

Looking at the content tree of Umbraco, I foresee the following options. Option A would allow the basket to be accessible across each area.

Would Option B allow the basket to be accessible across each area?

Option A
======
Content
> Main Site
>> Home
>> About Us
>> Products A (is it recommended/valid to set a hostname here?)
>> Products B (is it recommended/valid to set a hostname here?)

Option B
======
Content
> Main Site
>> (main site children)
> Products A (set appropriate hostname)
>> (Product A children)
> Products B (set appropriate hostname)
>> (Product B children)

Thanks for any help