If you use your device for a mobile office, there's a good chance you have Quickoffice Pro installed (and if not, you missed a great opportunity to grab it about a week ago). It's already one of the best mobile office suites around, and it (and Pro HD for tablets) just got a little bit better - it hit version 5, which brings along with it a herd of new features, tweaks, and improvements.
More often than not, we scoff at Amazon's free premium app of the day, because, let's face it -- there isn't much that screams premium about most of them. That's not the case today, however, because QuickOffice Pro and Pro HD (for Honeycomb tablets) are both free in the Amazon Appstore.
QuickOffice Pro/Pro HD are both great office suites for anyone who needs to edit or view documents, spreadsheets, or powerpoint presentations on the go, and for today's price, you can't beat them.