Hypothetically speaking if one had the pre release client for the ipad then one should know how to compile it 
Putting all hypothesis and theory aside. Unless you had the source code it would be very difficult.
Let's hypothetically say someone could not contain themselves and they gave someone the client.
There are a few challenges -
1. The app has to be signed. In the case of ad-hoc mode your UDID has to be specifically added for it to install
- In the case of an enterprise signed app this is not the case, it will just work. I assume that is not your case or we would not be hypothetically speaking. It would be working.
2. Signed or not signed - I jail broke my iPad
- Based on Apple's rules, an app builder is responsible to protect Apple's interests and rules. We do take it seriously ( Apple's rule is no app can be distributed outside your company until it is on the app store / approved by Apple etc. ) . All you really can do is put your best foot forward.
In this case, it is known and understood people generally get excited and caught in the moment and often do not take seriously the legal implications it could have. What is the big deal right, no one will ever find out?
Signed or not signed, to put the best foot forward, an internal mechanism was put in place in the client so a device must be registered. If not registered and on our list the app will not run. Jail broke or not.
That's not to say it's impossible, just how much time do you want to put into it :)?
Hopefully, that helps.
WP
