This came as something as a surprise, but I got a response from Apple about the delays in approving the new release of SongBook. They have agreed to an expedited review of the latest release, so it should be in the store soon.
Still a very frustrating experience for everyone though. It’s been over 40 days since an update to SongBook, and the current release does not work well with Cara, and not well at all with Cara 3 and 5. The new release will sort this out and give you some nice startup time improvements.
I do have some more updates in the queue, but I don’t want to risk any more delays, so as soon as this release is live I’ll be submitting another update. I do hope this is back to the normal schedule of around 14 days for review. If that is the case we should be back to a good current release in no time.