Youtube in iphone app

[uffmoc]

I am writing a mobile application that will have multiple (over 60) short video tutorials. I will be creating and uploading all of the video content, but I have a few questions:
1) Can I have a paid app that points to multiple youtube videos (with content that I created and uploaded) for free, or do I have to pay a fee since it is a paid app? If there are fees, where can I get a price sheet?
2) Do videos expire if they are seldom viewed?
3) Can I make those videos only available to users of my app, or must they be made public in order to be used in an app?

 

[Jason Ingersoll]

Here is my best guess as answers to your questions:
1. Yes you can
2. Not sure but I know accounts close of there is no activity.
3. If you can figure out a way to have only people who sub your channel or a way to give the app downloader a link to your video (and set youtube to unlisted except those with link can view) it may be possible