Wow… Polaris Office 5 by InfraWare is coming faster than I thought. Yes, you can download and install Polaris Office 5 for free on your Samsung Galaxy S4 now. No need to use Polaris viewer 5 anymore and unleash the ability to edit office documents like Microsoft Word, Excel, PowerPoint and PDF. Hmm… The current version of Polaris Office 5 does not seem to support cloud service such as Google Docs, Dropbox and Box.net yet. Hopefully, future version will support it soon.