Version: 1.1 Allows easy embedding of code stored on snipt.org.
Heck no! If you have a twitter account you can use that to create a snipt box ... but its not required ;)
Future updates will include an options panel to allow you to customize the appearance of embedded code.
If you use RSS1 to distribute your content you will only see a text link pointing to your code on snipt.org. If you use RSS2 or ATOM you should see the full snipt.