I'm thinking about getting another open handheld, though I'm not sure there's anything out there that's really worth it at the moment.
I have a GP2X F100 MK2, GP2X Wiz, GP2X Caanoo, Xperia Play, and Nvidia Shield.
I really like the GPH consoles. The Wiz is my favorite of the three. I've never had any of the "pixel rot" issues that some people have. For me, the Wiz had the right mix of power and portability. The Caanoo's default GUI is wonky, and the Open2x-style GUI is slow to load and introduces some problems of its own. I really wish that an Open2x firmware could have been released for the Caanoo.
The Xperia Play was a disappointment. The internal storage interfered with the smartphone functionality, while the nature of the android software market means that the hardware is now too obsolete for ePSXE and FPSE, which means that I really don't have a compelling reason to pick up the Play instead of one of my GPH consoles, which at least have software that has been hardware-optimized.
I really, really love my Nvidia Shield (or the "Shield Portable," as it's now called). I use it every day. I use it to stream Youtube and Netflix to my TV, I use it to play controller-enabled Android games. I would probably stream PC games to it if my video card supported that. I don't use it for nearly as much emulation as I thought I would, though the hardware is definitely up to the task, both in terms of power and controls. The only downsides are that it does take forever to boot and it's gigantic. It weighs over a pound. It is a handheld, but it's only slightly more portable than a Gamecube.
If a "Shield Pocket" were announced, I would pre-order it in a heartbeat. Since it doesn't, I'm looking for the next best thing.
The GCW Zero looks pretty cool, though I'm seriously wary of crowd-funded handhelds. The OpenPandora had amazing specs, but it was shoddily constructed and subject to delays and support shortcomings. Because of all the problems with the OpenPandora, I'm skeptical that the Dragonbox Pyra is ever going to even materialize.
I hear that the Kickstarted GCW Zeroes had sticky buttons and scratch-prone screens. I also hear that Justin is a hard man to get hold of if one wants a repair performed. Have any of those issues been addressed in the ThinkGeek models?
Is there another option that I'm overlooking? My ideal new handheld would be a successor, and a clear upgrade, to the GP2X Wiz.