I can't reply below (is that an HN feature of some kind?) but all of these:

    JH4FKF7L4MR7
    HALW7E3RWFRN
    AM69Y3A6HLYF
    YNJYRTAFEKLL
    4MJW7RWY346L
    9339EPNA3JT6

Are taken. I would love a chance to play with this app! Thanks.

Thanks for telling me!

Have some more:

    JH4FKF7L4MR7
    HALW7E3RWFRN
    AM69Y3A6HLYF
    YNJYRTAFEKLL
    4MJW7RWY346L
    9339EPNA3JT6

Thank you HN for your tremendous interest!

And now the reply link shows up. I assume there is a reply-delay feature?

These codes are all taken.

I'm sorry, I don't have any more codes. I got only 50 codes, and posted all of them on the internet already.

The app is available for $0.99: http://itunes.apple.com/us/app/acoustic-ruler-pro/id47508196...

All taken! Any possibility for more?

I took 9339EPNA3JT6. Thanks!

Thanks. I took AM69Y3A6HLYF