Facebook is again being criticized for iPhone battery drain issues. A non-scientific experiment performed by technology reporter Samuel Gibbs of The Guardian suggests ditching the app may result in considerable battery power savings. He also mentions "large gains in free space, since the deleted app had consumed 500MB in total of his iPhone's capacity. Gibbs chalks most of that up to Facebook's cache, owing to the fact that the app itself is only a 111MB download." I just checked the storage space being used by the app, and indeed, it's caching an enormous amount of FB crap—almost ⅓ of a gigabyte, to be exact. Even though I'm not in immediate danger of running out of space on my iPhone, the app is getting the boot right now. What the heck do they want to cache? All of my FB friends' photos and videos for the past month? Advertisements?