Fetching text files from MacBookPro into IPad

I am writing an IPAD app that will use several text files in my MacBookPro as data sources for UITableViews that will display on the IPad.

Several questions:

1. I understand that in order for my app to fetch files from my MacBookPro over the USB/IPad connector, my app must support file sharing. How do I accomplish that please?

2. Since Apple made the IPad be an appliance, I can't see its file system. So how can I declare paths to store the fetched files? Is the IPad a multi user computer with multiple user home directories?

3. Can I write my app to interface with an SD card in the accessory connector so as to fetch text files from that card? What class should I use to do that?

I am facile with Obj C.

 

Thanx B. I downloaded that last night. I'll check back here if I don't find my answers. My problem is less about the programming issues than Apple's crummy policies.