It seems that these specs. below are dropped when upload my XML http://epohcj.com.ng/openSocial/mp3Player.xml and that stops my application from running because it doesn't recognise most of the script on the application anymore.

        <Require feature="flash"/>
        <Require feature="dynamic-height"/>
        <Require feature="opensocial-0.7"/>
        <Require feature="setprefs" />
        <Require feature="analytics" />
        <Require feature="tabs" />
        <Require feature="minimessage"/>
 

These are features / libraries we do not support yet (with the obvious exception of "opensocial-0.7" of course).

Ok, but how soon will they be supported? 

Hi,

There is no immediate ETA for this, although we are adding new things all the time. :) 

 Thanks,

Rhonda

ok, thanks 

 if it is not supported, wouldn't make sense than to say that the "required feature" is unavailble when you submit the script?

jDavid:

 if it is not supported, wouldn't make sense than to say that the "required feature" is unavailble when you submit the script?

It isn't supported and therefore it doesn't mean it should throw an error.  An informational message is displayed indicating that it will be ignored when you validate the XML.