PSP coder uberjack just announced that the SMS Plus emulator homebrew has received an update. This latest release has been labelled as v1.2.3, and features improvements such as enhanced emulation speed, and various other bug fixes:

* 20% speedup in emulation speed with new 8-bit video rendering
* Option to turn off FM emulation (an additional 48% improvement in emulation speed - all games now play at 100% speed with VSync enabled)
* Various small bug fixes

In case you're wondering, this application is actually uberjack's PSP port of Charles MacDonald's SMS (Sega Master System) Plus emulator, with this release coded in C. Installation and usage details should be available in the readme provided with the download - make sure to check that to know how to run SMS Plus. Also make sure to check out uberjack's other emulator's works, namely ColEM-PSP and fMSX-PSP.