i know there was a little video on the setup screen that showed it.. but I haven't tried it so I don't know that I could describe it well.
It looked like they placed a finger at the beginning of the text and then a second finger dragging down to the end of the text. Hope that helps a bit...
touch the screen where you want the cursor and hold it there for a second or two. It will turn into a hollow box. Slide your finger over what you want to highlight and copy/paste.
