10templates designed a nice under construction template for Joomla 2.5, which you can download for free on their website. A special feature is the used estimated time remaining counter for your website launch. Users can also submit their e-mail adress for update informations. Its also possible to integrate your social links for Twitter, Yahoo, facebook, StumbleUpon or Google+. 10templates deliver this template in 3 preset styles. You can use it also for the earlier Joomla version, Joomla 1.7.