If only they would create a version with those features I'd be delighted to build it, sign it, and install it myself. Though I understand why they don't.
And then re-do the process every three months when their provisioning profile expires.
I've had a couple apps that were dev-install only because they were banned from the app store. They didn't last long. The friction for keeping them on my phone was too high when compared with the benefit the app brought.
