DataViz a few years ago released a very promising product called Documents To Go. The main idea behind this application was to give mobile users the chance to manipulate Microsoft Office documents on a portable device.
Now DataViz has announced they’re working on a version of Documents To Go for the iPhone. They haven’t announced a released date yet, but you can visit their website and subscribe to receive e-mail updates in order to be one of the first to know the availability of the product.