Iphone apps and rss... please help me!

Hi,

- I am a newbie here and believe it or not a newbie on forums so please dont attack me for being naive! -

I am in need of some advice but i cant give out too many details of the functionalty as i am bound by an NDA!

There are 2 areas i need your help, firstly:

1. Is there a way to generate an automated real time RSS feed for any live ecommerce website? or does the user have to create a static product feed and upload it to a given server which they update each time? Is the latter how Google Shopping works?

2. Ia it possible to produce an iphone app that connects to a filesharing site like mediafire so that an iphone user can upload files to my mediafire account (like dropbox) and i can collect the given files when i log in?

Thanks! Doug