Hi. My name is Dave, I have an app called Georeader. I have had it out for about 2 years now and it never had any issues with newer operation systems. On the comments section for my app,  a person left a message that the app which worked fine on their Atrix 4G did not work on Jelly bean. I can't seem to contact them to find out more details and I do not have have a Nexus 7 yet. I was wondering, could somebody try  downloading my app Georeader ( its free) and see if they can get it going on their Jellybean equipped device?  I would like to find out if there is an issue. My email is info@mygeoreader.com  to contact me. Please let me know what you find.  thanks