iOS: Air Media Center is media streaming and live conversion app for iOS (and, strangely, just the Samsung Wave). It's a lot like Air Video, our favourite app iOS app in that category, but it's $2 cheaper and can serve up more than just your video collection.
Air Media Center isn't alone in its ability to stream more than video. StreamToMe ($2.99) can do it too, but at a higher cost. It also doesn't stream your photo collection.
But aside from a cheaper price tag and the ability to view photos, Air Media Center actually has a number of other distinct advantages. It provides the option to just stream a video as-is if it doesn't require conversion, which is nice if you want to maintain the highest quality possible. It also sets up authentication for you automatically, so you can use the user accounts already present on your system to log in. The app also promises apps for Android and Smart TVs in the near future, making it great for people who use multiple platforms (like me!).
From my own tests, it seems to work just as well as Air Video and StreamToMe, and the server software (available for both Mac OS X and Windows) is super-simple to use. While Air Video and StreamToMe are both great apps, there are plenty of reasons Air Media Center might be your best option.
Air Media Center ($0.99) [iTunes App Store]