Cool twist on the PoS/Mastercoin idea.

You should clarify and put in the OP a specific datetime (blockchain time) by which the issuing stops.
Is 03/Jan/2014 the official launch date for Nxt?

Also, I think you should have used some incentive for early adopters.
Mastercoin gave 10% bonus per week before the deadline.
Here, everybody has the incentive to wait until the last possible minute before sending their satoshis.

Since the deadline is still about 3 months in the future, I think it's still ok to change the protocol and include such a bonus. I wouldn't use 10% per week though ... let's see we still have about 11 weeks to go. MSC had a ~40% bonus over 1 month, and the short investment period was criticized. I propose giving Nxt users 5% bonus per week prior to the deadline. Fractional week counts as the appropriate fraction of 5%.

It's actually an interesting experiment in game theory. You intended the sent amounts to be small, but you might gather up a non-trivial amount in your address.

I assume the funds sent to 1BCN1ugdKdWd9pQ8Am9hMhtHZfmbXzxE8a will be used for developing the protocol/related bounties? Is this stated anywhere? This should be added to the OP.

BTW, it's really too bad you didn't use a vanity address for your version of 1Exodus.

Good luck, I will be following this.
If you want we can chat sometime and you can tell me about the vision of this new alt (ping me at ron@bitblu.com).