SwanGBA v0.7.0 is released. This is a Bandai WonderSwan (Color/Crystal) & Benesse PocketChallenge V2 emulator for the Nintendo GBA.

SwanGBA Changelog:
Fixed sound output control (0x91) register.
Fixed latched icons (0x1A) register.
Fixed LCD sleep (0x14) register.
Fixed power off (0x62/0xAC) registers.
Fixed mov to stack segment register.
Fixed Trap flag handling in EI.
Fixed AM/PM behaviour of RTC.
Optimized sound rendering.

Download: SwanGBA v0.7.0

Source: Here