Dynamically embed Hikashop into Facebook Page

Hi

Is there a way other than using a iframe to embed my store directly into a facebook tab.
What I would like is a Tab that allows people to with out leaving Facebook register on my site.
I would also like to add a second tab that is basically a simplified version of my shop, all products in my Facebook shop should be automatically updated if I change the price on my site also if possible it would be great if the client could like or share a product and purchase it directly from Facebook. If this is not possible would it be possible to do something like the shopmania plugin does where all the products are listed and if a client clicks on it it links through to the product on my site an example can be found here www.facebook.com/ComXComputers

If an iframe is the only option which one would you recommend that will display correctly whether displayed on PC or cell phone

Thanks