[MoMan]

FWIW I have come up with a new way to cache that doesn't have to check for a timestamp every time. This works especially nicely if you write your own memcached wrapper class.

PHP Code:

$data = $memcache->get('key');

// Main content
if(!$data)
{
// generate $data
    $page->cache->set('key',$data,MEMCACHE_COMPRESSED,86400);
}