I can not see the  <icon src="icon.png" /> on remote PhoneGap Build application

Please see Asking Better Questions (PhoneGap Forum) and include the relevant information we need to help you. In this case, seeing your config.xml file (minus identifying/secret information) would be of help, but it would also be good for you to describe exactly what you mean by "remote PhoneGap Build application". Do you mean that your app doesn't show the icon when installed on a user's device, or do you mean that the PhoneGap Build website isn't showing the icon?