http://www-frd.fsl.noaa.gov/mab/soundings/java/
You can load it on your Nexus through any browser. I think the Android app is just fine in displaying a limited subset of that data.
Many thanks Alan, very nice app you put together.
FYI. One reason I wrote this app is my Nexus-7 doesn't have a supported java plugin so you can't load the noaa site.
I do agree that I want to keep this app simple but functional.