Thank very much Roos , your help is good for me :).
We (my coworkers and I) don't use proyects in arcgis.com neither arcgisexplorer only we use the free application "ArcGIs" for IPads, IPods and IPHONE, then,
the only way for us is to define this popups within the JSON of the map, rigth?.And I can do it in mobile content server webmap, namely here (image attachment):
Greetings!!!