The world is moving on. There's no reason why virtual offices shouldn't exist (well, there certainly are a few reasons, but consider the potential!)
Google Docs is one cool way to get a Virtual Office going. All you need for it really is a gmail account. Google Docs - in common Microsoft language - is your Word, Excel and Powerpoint all on the internet. It additionally has the convenience of uploading docs from your browser (no need for USB keys) or getting direct URLs from the internet. It allows for sharing with other people or collaborate with others to create a project.
Educational implications are amazing. You can get your students to get together to work on one common task and then actually find out who contributed how much. They would need individual e-mail IDs though, so probably a good fit for intermediate and higher.