IPhone Distribution - Multiple Devices - Not App Store

I am an individual developer who has written an ipad app for a company. They have bout 30 devices they want to put it on, so my current plan is to create a provisioning 开发者_高级运维profile that contains all the UDIDS for all those device. So here are my questions:

1. I surely will miss at least one device and have to either: a. Create a new distribution provisioning profile for that device or b. Add it to the existing provisioning profile, in that case does it void the others

2. Could I submit something to the appstore that is obviously for internal use and password protect it? The company probably isn't willing to do an enterprise account, and I don't want to maintain it by getting them a new provisioning profile every year when they expire. Any ideas here?

Did you consider Ad Hoc distribution? That would allow you to add the app to a new device without having to make a new provisioning profile.

I haven't done it myself, but this looks useful:

http://www.iphonedevsdk.com/forum/iphone-sdk-development/35818-unofficial-ad-hoc-distribution-guide.html

I love TestFlight for small distributions. Also, see the Apple enterprise distribution documentation. It goes over signing and wireless distribution.

Rather if this is going to be used by the company for a longer period of time then I would advice you to go for iOS Developer Enterprise Program.

The main highlighting lines about Enterprise Program is

"Gain access to resources that will help you develop proprietary, in-house iOS apps that you can distribute to employees or members of your organization."

So you can distribute the app among your company employees directly without need to submit it on app store. That would surely be a better option.

For more details on iOS Developer Enterprise Program, you can check out this link..

iOS Developer Enterprise Program