Show don't tell
Honestly, I don't really think anything else could be done here. Dropbox uses Dropbox to store their media kit and provide super simple access to its assets – the ideal demonstration to anyone visiting the page of its product's ease of use and value. In fact, I would have been a little disappointed if they didn't use their own product for the job.
This is a great tip for content creation in general, not just your press page: use your own product wherever possible. After all, what greater demonstration of value could there be?