difference between Dumper($environtment) for HTTP::Server::PSGI and HTTP::Servere::Simple::PSGI

difference between Dumper($environtment) for HTTP::Server::PSGI and HTTP::Servere::Simple::PSGI

--- log.1	2010-05-02 04:49:06.000000000 +0200
+++ log.2	2010-05-02 04:49:23.000000000 +0200
@@ -1,7 +1,7 @@
-HTTP::Server::PSGI: Accepting connections at http://0:5000/
+HTTP::Server::Simple::PSGI: Accepting connections at http://0:5000/
 $VAR1 = {
-          'SERVER_NAME' => 0,
           'SCRIPT_NAME' => '',
+          'SERVER_NAME' => 'localhost.localdomain',
           'HTTP_ACCEPT_ENCODING' => 'gzip,deflate',
           'PATH_INFO' => '/',
           'HTTP_CONNECTION' => 'keep-alive',
@@ -11,9 +11,8 @@
           'SERVER_SOFTWARE' => 'CGI-Emulate-PSGI',
           'QUERY_STRING' => '',
           'HTTP_USER_AGENT' => 'Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050923 MultiZilla/1.7.9.0a',
-          'REMOTE_PORT' => 13737,
+          'REMOTE_PORT' => 15451,
           'SERVER_PORT' => 5000,
-          'psgix.input.buffered' => 1,
           'HTTP_CACHE_CONTROL' => 'max-age=0',
           'HTTP_ACCEPT_LANGUAGE' => 'pl,en;q=0.7,en-us;q=0.3',
           'REMOTE_ADDR' => '127.0.0.1',
@@ -21,9 +20,9 @@
           'SERVER_PROTOCOL' => 'HTTP/1.1',
           'REQUEST_URI' => '/',
           'GATEWAY_INTERFACE' => 'CGI/1.1',
-          'psgix.io' => bless( \*Symbol::GEN1, 'IO::Socket::INET' ),
+          'psgix.io' => bless( \*Symbol::GEN0, 'FileHandle' ),
           'HTTPS' => 'OFF',
           'REMOTE_HOST' => 'localhost',
           'HTTP_HOST' => '0:5000'
         };
-127.0.0.1 - - [02/maj/2010 04:49:06] "GET / HTTP/1.1" 200 5712 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050923 MultiZilla/1.7.9.0a"
+127.0.0.1 - - [02/maj/2010 04:49:23] "GET / HTTP/1.1" 200 2146 "-" "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050923 MultiZilla/1.7.9.0a"