Zend Framework Gets An Unofficial PEAR Channel
Thanks to the phpmafia, the Zend Framework has a PEAR channel that you can use to install it from. Details can be found on the author’s blog, however, they are in French. Babelfish will translate them for you but it ends up sounding like a passage out of Borat. So I’ll paraphrase for you and give you the details.
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.
pear channel-discover pear.phpmafia.net
Then, you just tell it to install.
pear install phpmafia/Zend-0.8.0
Since this is Geoffrey’s first attempt at a PEAR channel, he is asking for people to test it and report any problem they have with it to pear at phpmafia dot net

Comments
pear install phpmafia/Zend-beta
(This gets 0.9.2 at last count)
you can then do pear upgrade phpmafia/Zend-beta
And once version 1.0 comes out, I guess you can drop the 'beta'!
Just do
pear channel-discover zend.googlecode.com/svn
pear install zend/zend
The aforementioned 2 channels haven't got up to date yet with ZF v1.5.0 (it's only been out a few days though)
You can get it as follows:
pear channel-discover http://pear.pecanz.net/
pear install pecanz/Zend
(I will continue to update this channel with releases for stable versions of ZF, as and when they are released)
Amir