there is a youtube app that comes on every iphone (along with a maps app, safari, mail, etc.)
You would have to use the YouTube App for iPhones. You will not be able to upload a video from a mobile browser.
You have to have internet connection
iphone
Youtube.
Go to general and then restrictions and switch off YouTube.
youtube
Youtube!
Yes, you can put an iPhone camera in an iPhone 3GS provided you have the required skills.
You can put anything on youtube.
Both YouTube and Truveo have dedicated iPhone video applications.
It should automatically be on your iPhone when you first turn it on. It's one of the default apps.