[HackerDude]

My bad! It turns out, upon further investigation, that merely checking if window.kindle exists defined it (JS be like). It appears to be defined only when viewing the Kindle's "store" app, as the store app is basically just a glorified webview

I have also discovered that the Kindle's browser is the equivalent of Safari 5, so I can now locally test HTML and JS code

Unfortunately, as a result of this, it doesn't seem to be that useful to me