My issue is 100% the association of the word Open Source with proprietary software. Yes, even the enterprise license is proprietary. I think we have a big issue in the software world with confusion about what makes something open source. Part of this is because web software skirts the GPL and so some people have come to see Open Source as for the benefit of the developer.
Open Source is about the user. It is about giving the user freedoms, not saving developers money.
Now, the enterprise license is interesting. It is better than the introduction licenses and I think is 90% to the four freedoms. The only thing is the requirement to only distribute modified source. Which is a weird requirement since one need only add a no-op.
If I was running BinPress I'd inverse things. iOS devs and devs of proprietary software do not want to make their software open source, so charge them for the ability to use your library without distributing their code. This is the dual license business model and it can work well. Propreitary software has the money so get them to finance the open source project.
As far as I am concerned if you are not distributing source and redist rights to end-users then you are worth only as much as you can finance real open source.
Edit: I would also like to mention that I did not downvote pytrin.