Wow, check this out! Thanks for sharing, Dave!
While downloading the windows version of software for my $20 Oscilloscope I noticed there was a version for Android at http://nfxdevelopment.wordpress.com/oscilloscope-pro/. Having shown the unit to be well behaved under windows I decided it was worth a try. I spent my $7.99 and installed the app without issues and connected up the Board via an OTG cable to my 2013 Nexus 7. Worked well, the noise showing up on the squarewave trace is from the AWG, you dont see it when feeding in an external square wave.