After the recent problems regarding the usage of PEAR channels hosted in google code SVN repositories, we are glad to announce that the problem has been fixed on both sides!
Reason for the problem was that PEAR sent HTTP “Host:” headers with the port included, i.e. “Host: pear.php.net:80″. This is completly valid according to the HTTP/1.0 specification, and it worked with all of the channels – except those from Google.
Google fixed their HTTP servers to accept Hosts with port numbers, and we at PEAR fixed the PEAR installer not to add the port to HTTP host headers. Version 1.9.1 of PEAR includes that fix.