There is a known issue with the build system that results in the following message when you attempt to email a built iOS app to your iOS device for installation and test:
Cannot connect to appcenter.html5tools-software.intel.com
This issue is currently under investigation.
Until this issue has been resolved, you must download the application from the final build screen onto your development system and then use iTunes to install your test application onto your USB-connected device. If you are unfamiliar with this process there are lots of instructions available on the web, search for "install ipa with itunes" with your favorite search engine.