In this way, it is very simple to consume webservices whether their response is either XML or JSON. JQUERY is cross browser compatible and works with all major browsers. There are some JSON, XML webservices available for testing from 'Google maps'. Check the REFERENCE section. One more interesting thing I want to mention is we can call any number of webservices from different places , different formats and can display easily in the same page. In the download section, the HTML page shows both JSON, XML webservices. We can use the same method in ASP.net 2.0/3.5/4.0 to consume webservices without any server side code.

References

http://en.wikipedia.org/wiki/Usage_share_of_web_browsers

http://jquery.org/

http://json.org/

http://encosia.com/2009/02/10/a-breaking-change-between-versions-of-aspnet-ajax/#comment-34045

http://code.google.com/apis/maps/documentation/webservices/