WonderWitch status update! FreyaBIOS has proven fairly possible to reimplement based on public documentation alone, as it's primarily a thin wrapper for the WonderSwan hardware.

FreyaOS, the other element, is available to download for free from Qute's support website - but with no license.

(For context: FreyaBIOS is the hardware abstraction layer + diagnostics/software update "monitor". FreyaOS contains additional user-facing libraries - process, filesystem, etc. - an user interface, and a remote serial port shell.)

This doesn't stop anyone from using it, of course - the file is there, you can download it. You're just not allowed to use it (legally and/or morally, depending on your country and conscience) without purchasing a device last sold around 2008. (There are users and communities who care about this - please keep the "ooh like that's going to stop anyone" to yourself.)

This issue could be resolved by Qute Corporation - by broadening the licensing agreement on http://wonderwitch.qute.co.jp/WWPlayer/ - and the remaining components could be provided by the community, allowing for better preservation and accessibility of freeware WonderWitch software. (Whether they have all the necessary rights is another question, though.)

The FreyaBIOS reimplementation has been progressing fairly well, and the larger FreyaOS could be tackled next - but as it also contains the Meg shell/user interface, some element of interacting with the original device would remain inaccessible to non-collectors.

Either way, I'd also be happy with a way to purchase a digital version of the WonderWitch data, or to help with development of a digital version (developing an emulator, file transfer tool, etc) - but I have no avenue of reaching anyone who could make a decision in this manner.

Until then, or until I'm told to stop, I guess I'm just going to keep tinkering away at it.