CHN who has released many emus and more on both the Dreamcast and GP32 has updated his site with news that he has released the source to his handy port, heres what he says:

The source of the port of Handy, the Atari Lynx emulator written by Keith Wilkins, is available for download for the Sega Dreamcast and the GP32. There are no binary downloads as it wouldn’t make sense because of the lack of a filerequester and such things which make an emulator actually usable. If you release a version of the emu based on this port, please let me know about it.

Lets hope someone compiles a release for both systems. 🙂

Check out his site Here