Official Site: http://www.gp2xwiz.com
Brief history lesson, the GamePark32 was an old Korean handheld system that became popular outside of Korea because it was extremely easy to program for, although the official games made for it were nothing memorable. After a few revisions and some changes to the company, they created a successor system called the GP2X, made with open-source content in mind and running on Linux. After a few revisions, we're now at the next release, the Wiz! The Wiz kind of combines both of the old platforms, with easy homebrew options along with promising regular commercial game releases. The Wiz comes with lots of cool features including a touch screen and SDHC support, all for around $180 or so (if you're in Korea, you can score one for around $140). It has an awesome OLED screen, which means you can play this thing in direct sunlight and be able to see fine. It also has utility features, like a video/music player, flash player, PDA tools, and other cool things.
Full specs:
Chipset: MagicEyes Pollux System-on-a-Chip
CPU: 533MHz ARM9 3D Accelerator
NAND Flash Memory: 1 GB
RAM: SDRAM 64 MB
Operating System: GNU/Linux-based OS
Storage: SD Card (with SDHC support)
Connection to PC: USB 2.0 High Speed
USB Host: USB 2.0
Power: Internal 2000mAh Lithium Polymer Battery (approx. 7 hours game/video playback)
Display: 320×240 2.8 inch AMOLED Touch Screen
Microphone Input
Physical size: 121 mm wide, 61 mm high, 18 mm deep
Weight: 98 g (without battery), 136 g (with battery)
3D Acceleration and TV Out
Chipset supports OpenGL ES 1.1
133M Texel/sec, 1.33M Polygon/sec.
The thing about these systems is that anyone can make software for it, and the Linux platform makes it easy to port various programs. There's a very hardcore dev community, making original software and porting other programs. There are tons of emulators for it. In addition, Gamepark has promised to release commercial software on a regular basis, with 10 titles to come out within a year, and much more after that. GP really wants this to be a real contender in Korea, and have been getting support from a lot of Korean developers to make official software for the system. Gamepark also wants to really make a push for a worldwide audience with the Wiz, and have said that they'll try very hard to make sure that the official games have English language versions.
The main community for open handheld development is located at: http://www.gp32x.com
You can download free programs, games, and emulators at http://archive.gp2xwiz.de/cgi-bin/cfiles.cgi
Obviously, with the system just releasing, many of these programs are just ports from GP2X versions without much optimization. With enough time, there's little question that the Wiz will have a large amount of free games and excellent emulators! Of course, if you want to try to produce something, the community would be more than happy to help you!
You can buy the Wiz from a variety of online stores, including Play Asia, where I got mine. Play Asia seems to be a good place to get it, but you'll have to wait a few weeks since the initial shipment sold out pretty fast. There are other online retailers that can sell the Wiz to different countries. http://www.gp2xstore.com/ is supposed to be pretty good.
I know that people love the homebrew options of the DS and PSP, so I really hope that you guys give the Wiz a good look! It gives you all the homebrew options you want without the need of battling the hardware company with firmware updates and hacking your system. I've been a big fan of Gamepark's systems and the things that have been produced for it. The community is extremely talented, and their vision for an open source handheld is definitely commendable!