First of all, an apology to anyone who had problems running Spark Radio under OS4. We detected the problem quickly, but our version update took longer than usual to be approved by Apple. I’m sure that they are swamped because of the large volume of apps being updated for the new OS.

The good news is that Spark can now stream audio in the background while you check email, send text messages, etc. (OS4 only) It was our most requested feature, and thanks to the new OS, it’s now possible.

Please note that the visualizers are not currently working for users with OS4 on the new iPhone 4. We will have a fix submitted quickly to Apple for their approval. Thanks for your patience.

Spark Radio just reached #19 on Apple’s list of bestselling music apps on iTunes. Even better, we’re ranked #8 for iPad.

Thanks to everyone for enjoying Spark Radio.