RIP Sparrow: Components open sourced for personal use only (thenextweb.com)

Here are the contents of the two zip files that Sparrow provides at http://sprw.me/lgpl.php:

* mac.zip - https://gist.github.com/3196054

* iphone.zip - https://gist.github.com/3196057

In other words - not much at all. :(

It's just an email client... not that hard to replicate.