Over here ... http://help.zoho.com/portal/en/community/?ftid=2266000000399525 ... at the behest of ZOHO User tonythomas ... the ZOHO Creator Team released an ehancement (last week) where by Developers could use the openurl command to have Application resources (like Forms and Views) displayed in a named iframe on the same web page as the calling Resource.
This has opened up huge opportunities for Developers to improve the interface/interaction of their Applications ... and provide Web 2.0 (AJAX) like experience to their Users where parts of the Web Page can be refreshed with new data from the Server without having to repaint the entire screen space.
So, I whipped up an Application to demonstrate this interface/interaction ... you can check it out here ...
http://creator.zoho.com/scriptedlogic/scripted-logic-examples-iframes-/#View:This_Application
... hope it helps you to see the potential for designing your Applications that provide your users with a richer experience.
Gaev