File Manager. By Nexscience LLC. - Download, Store, view and share documents on your iPhone, iPad or iPod touch, transferring them easily from any Mac, PC or from Internet. - Create & Manager Files and Folders on your iPhone or iPad
Choose, design and print your favorite Avery products online. You can design and print business cards online, labels, greeting cards and more. You can even design invitations online to print. Get started now.
IA Writer --modifies the default iPhone keyboard slightly so you’ve got quick access to certain punctuation marks such as colons, question marks and apostrophes, and you can also sync with Dropbox and iCloud, avoiding the need to email documents back and forth constantly.
Google Drive. Student and teacher sharing documents: students download a written assessment, complete it, and re-upload to the teacher's account for grading. Teachers could share learning videos or students could upload evidence of learning. Free. One major benefit over other cloud systems: it allows document editing on the iPad.
I love the Flipboard app as a professional development tool. It's a 'social news magazine' that allows you to follow topics you're interested in a gorgeous format. Bonus: my 10-year-old techie son loves it too and keeps current on all things Apple.