@ joaompp
If it has a web browser then it has office these days.
Seriously, it will not be very long (maybe 3-7 years?) that we have to even consider what software we are using, and what platform we are using it on. Most consumer and office software already has web based versions which will run on just about anything from a phone to a work-horse of a computer as long as it has a web browser. For more complicated software like games we are seeing all sorts of software solutions to stream inputs and outputs between devices with minimal issue.
Maybe I am over-reacting a bit, but if a device has a web browser and the ability to attach some form of keyboard and mouse, then it can be used for at least basic productivity... and it has been this way for a few years now! With the release of Office for iOS and Android this just became that much easier, and the stuff coming out over the next 2 years is going to bring full desktop capabilities to extremely small devices. All that you will need is a keyboard, mouse, maybe a display, and a network or internet connection to whatever device or service is providing your content.