Now here's a developer we haven't heard from in a while! 'e' has released the first new version of his e[mulator] for the PSP, bringing it up to version 0.81 today. e[mulator] for PSP is an emulator which combines e’s own eSwan with HuE together. eSwan is an emulator for WonderSwan on the PSP, and HuE is an emulator for PC-Engine on the PSP. Here's the changelog that has been kindly translated by QJ's very own Jeff Chen:

OverallWonderswan colour
- State management fixed
- Thumbnail auto-generation fixed

WonderSwan
- Horizontal scrolling problem fixed
- HBLANK and VBLANK processing fixed

Famicon
- ROM database processing fixed

Now supported hardware
- PC Engine Super Graphics CDROM2
- WonderSwan
- Famicon (modified and used the source code of NesterJ for PSP)
- GameBoy (modified and used the source code of RIN)