I'm currently testing Splunk 6.2 in my development environment, and my main search head is using the 60 day free trial. I wanted to test the mobile app server as well, but wanted to see if anyone has deployed this while using the free trial license?
Splunk Mobile Access no longer requires the Mobile Access Server, starting in version 2.1.0. You can connect directly now, or install the add-on if you need SSO support or push notifications. See http://docs.splunk.com/Documentation/MobileApp/2.2.1/Install/Login