Icebergs is a start-up that's offering a cloud service that lets you run Linux desktop sessions in a web browser using HTML5. The goal is to allow programming work to be done on any machine without having to install Linux every time.
The pay-as-you-go service runs Ubuntu Linux with an Xfce desktop environment for a fast and lightweight experience in the browser. It offers root access so you can install the software you need. The service is also optimised for touch screen devices so you can even use it on a small smartphone screen if you so desire.
You can start using Icebergs for free which will give you one instance for two hours per month but your instances are removed after your session. Plans start from US$9.99 (AU$14.30) per month with gives you 25 hours monthly usage and you can run two instances with 8GB of storage per instance.
You can find out more about the service and the pricing structure over at Icebers website.