Krauser's Shoe Shiner
I've been working on a custom linux kernel for these inexpensive handhelds over the last few weeks. With that I've been testing emulation targets since it's a gaming handheld. It got featured on hack-a-day http://hackaday.com/2013/11/08/linux-on-a-leapster-for-classic-video-game-emulation/ so I figured I'd mention it here.
I don't have sound working yet for the Neogeo emu but I plan on giving that some attention this weekend. It should be mentioned that other emulators I've ported have full working sound. The ARM9 SOC used in this device favor's 32khz vs 44.1 audio so configuring that as such will improve sound quality on all emu's tested.
It's rumored that these will go on-sale at Toys-R-Us for $30 on Black Friday in the US however I've been picking them up for next to nothing on Ebay.
My full write up including firmware and emulator downloads can be found here: