For those of you that are more knowledgeable about AMF and how PHP handles it, take a look at this link and let me know if AMFEXT really does mae PHP's encoding and decoding of AMF 50 to 200 times faster like the second link claims. And if so, are there any drawbacks? And does it work with Zend_Amf?
http://www.teslacore.it/wiki/index.php?title=AMFEXT http://www.5etdemi.com/blog/archives/2007/01/amfphp-19-beta-2-ridiculously-faster/