Our e-commerce platform is in the process of changing to what we call app based stores (essentially running in a browser as single page web-app)  With these new stores they are being built in HTML 5 and using escaped fragments.
Currently merchants are usually running 2 stores until we launch to app site at 100%.  My questions are really concerning the app stores which right now show on a subdomain but will essentially take over the primary domain.   Here is an example:
app.tikimater.com and app.sportsworld.com Since I am not a developer, I'm really having a hard time understanding the escaped fragments. I'm using this but https://developers.google.com/webmasters/ajax-crawling/docs/getting-started I'm not sure what my actual urls should look like and what the canonical should be set to. Right now they have been removed but previously they had  http:app.tikimaster.com#!v=1  Also, and how I should be setting up my meta information for Google so 1) pages are indexed timely 2) pages are indexed with the correct information.  I am still setting the meta titles and descriptions but in some instances Google uses other info. With the new platform we are moving away from on page content (written paragraphs) but category pages would have related products embedded.  Should I still be pushing to have some type of intro text, since it would solely be for SEO and not the shoppers experience. All product pages have content (product description etc) Thank you for any advice