NitroSwan v0.6.6 is released. This is a Bandai WonderSwan (Color/Crystal) & PocketChallenge V2 emulator for the Nintendo DS.

NitroSwan Changelog: Added some support for WonderWitch.
Added saving of machine setting.
Added SwanCrystal border.
Fixed LCD icons palette when switching machine.
Fixed some small bugs in the DMA.
Fixed cpu prefix handling.
Optimized some opcodes.

Download: NitroSwan v0.6.6
Source: Here