I did the same. I am several versions behind due to the requests for increased permissions, but this gave me the impetus to finally purge a bunch of applications with updates wanting additional, seemingly unnecessary, permissions. Though it was slow, I liked Bandsintown until a recent update wanted to read my contacts.
Facebook is now wrapped by Tinfoil-Facebook and Twitter is now relegated to the browser.
I found the book, "Who Is Fourier?: A Mathematical Adventure" to be an intuitive explanation of the Fourier Series and transform: http://amzn.com/0964350432
As a student pilot, I hope this gets sorted out soon. RunwayFinder has the best VFR-sectional-over-Google-Maps interface of the available online tools. Skyvector.com is a close second, but they don't seamlessly stitch together charts (you must manually switch between them).
Facebook is now wrapped by Tinfoil-Facebook and Twitter is now relegated to the browser.