I'd like to make my iPad a laptop replacement, but I'm in need of certain apps that can do what I need. I know there alot of there, but which one is the best for my money? I need to edit Office docs and powerpoints, maybe excel spreadsheets as well. I used CloudOn, but I don't like how it needs the internet. I'd need it to either email to myself or save to DropBox. As for PDF's, I use Adobe PDF Reader and find it really good. Is there an app that's better? I'd need to fill out PDF's, write on them, and all that stuff.