Would love to see a writeup on how to set up boxcar for as a replacement. Maybe Sparrow should implement their push notifications by just integrating with Boxcar and making it idiot proof.
And we'll have a blog post up at http://blog.boxcar.io here soon too. It's a bit easier than the above now, as you can just choose "Sparrow" from the list of Installed Clients to have it work.
