Hi, I'm new to the iPad and have a question about the directory structure. Is there a directory structure that can be manipulated in order to save files in one app and open them in another? For example, I can copy text from an email and paste it to a documents reader. I can then save it, but in order to print to my Epson printer, I have to open an Epson app and load a document from there. There doesn't seem to be a way to move around any directory structure to find other files. Is this thing a real computer or just an overgrown iPod Touch? Thanks.