The main priority at the moment is an infographic on the frontpage, explaining the concept of remoteStorage visually. The corresponding GitHub issue has some notes on it:
I’m also currently working on a new version of the website. It’s using Jekyll now, and the branch I’m pushing to is responsive_revamp. If you want to join me with that (probably makes sense to integrate the graphic directly on the new site instead of the old, it’d be great if you could join the IRC channel sometime. But you can also just check out the site and go crazy with it. I’m mostly focussed on content and information architecture at the moment, and will not make big style changes until most of the content is done.