I just got an Android tablet for a birthday present. I was aware of the app so I specified a tablet that could run it. According to the NOAA page, the beta test was supposed to end on September 2, 2013, but I was able to download the app and the relevant charts and Coast Pilot a couple of days ago. Played around with it some at home but it's going to be several months before I can try it out on the water. Just curious if anyone has used it while boating and what your experience was.

http://www.nauticalcharts.noaa.gov/mynoaacharts/