For the first one, pan the map North until you see some map graphics. Click one of the map graphics and you should see a popup. We will alter the starting extent for this sample so that you see some data when the page initially loads (I think the underlying data chagned since the sample was written).Regarding the mobile sample, the problem appears to be related to this:dojo.connect(dijit.byId('map'), 'resize', resizeMap);
We need to delete that line as with 2.5 it's no longer necessary. We'll update these samples soon, thanks for the heads up!