Citrix Receiver for iPhone/Android

After doing some research on Internet, I figured out a way to setup the XenApp PNAgent for Citrix Receiver without the need of Access Gateway, here is solution for Presentation Server 4.5

1. Create a Site for PNAgent, leave setting as default.
2. Find the file WebInterface.conf in the path 'c:\Inetpub\wwwroot\Citrix\PNAgent\conf', change the line 'AlternateAddress=on'
3. In DOS prompt, input 'altaddr /set '
4. Restart 'Citrix Independent Management Architecture' service

 I tested it on Nexus One Android and iPad.

Reference:
http://forums.citrix.com/message.jspa?messageID=598947