Looking to view, edit, create and share Microsoft Word, Excel, PDF and Powerpoint files on your Android device? Check out Smart Office 2, currently going for 60p at Google Play.
Not too demanding, requiring only Android 1.5 or above. It was all the rage back in, like, May 2009.
90% off for a limited time. Oh, and currently FREE for iOS!
(Thanks to vally77 at HUKD)