We have created a website that summarizes all information about the paid port of DOSBox to OS/2. The page is hosted at the WIKI at netlabs.org:
http://wiki.netlabs.org/index.php/DOSBox_Port
About the offer:
In the OS2.org web forum, Martin Klingenfuss was searching for someone to port the DOS emulator DOSBox (http://dosbox.sourceforge.net) to OS/2.
Mr. Klingenfuss personally offered a payment of EUR 500 and encouraged other people to sponsor the project. Currently, three other people have joined in and we can now offer 600 EUR to the person or team that successfully ports DOSBox to OS/2. If you want more information on this, please visit the website mentioned above!
Source: OS2VOICE