If you remember correctly, for purchasing the first ten Negima Re-releases and sending in proof of purchase, you'd be sent a bonus item. Today, Ken Akamatsu revealed it to be an exclusive UQ Holder Fanbook. Though not a whole lot is known at this time, it was stated to be 40 pages and it will contain info that was not in the serial release. Hopefully, someone who earned it will fill us in with the info inside.
Did you earn it? Are you happy with the bonus? Let us known!