As mentioned in this new post to the Zend Developer Zone, the Zend Framework has been set up on an "unofficial PEAR channel" you can install the popular framework from.
The author, Geoffrey, with some help from Arnaud Limbourg, has created a PEAR channel to use in installing Zend Framework. As with any PEAR channel, the first thing you have to do is tell PEAR to go "discover" the channel.
Cal gives the simple commands to get the process underway, showing both how to discover and install the framework from this new resource.