phpCacheAdmin is a Web application for administrating and debugging Memcached. It allows you to delete or view the current contents of the server and specify the output cache time. It also has the potential to be expanded to xDebug, FileCache, radishes, and other types of caches.
appserver.io is a multithreaded application server for PHP. Applications can be installed using drag and drop. It has outstanding performance, with benchmarking on nginx showing that it is about 50% faster than nginx alone (based on a standard Magento installation) with no additional tweaks.