After 4 weeks in development, a long-due site overhaul is at hand: at 22:00 GMT, today, the site will be moved to a new server with a new theme. The process should take about 15 minutes, after which the new site will be reachable through http://www.opentk.com. The old addresses will start redirecting there, as soon as the DNS propagation is complete.
Edit: Site move complete. It took a little more time than initially planned, but almost everything went smoothly. Please, be patient while the kinks are ironed out, and report any problems you see! The old theme is still available in your account options, if you happen to prefer that one.
It may seem that the site is still a little sparse, but new functionality/content will gradually be added. Don't hesitate to voice your suggestions/opinions. Thanks!