I have a bunch of ARMv7a boards at home. They are from different years, have misc CPUs and GPUs. All I think that some of them suck for some reasons.
Pandaboard was great board when got released. Then Texas Instruments fired everyone involved so now it is crap. Sure, mainline kernel works fine but no audio/video decoding in hardware, no OpenGLES due to PowerVR stuff which no one cares about because it is proprietary.
Wandboard Quad. Cool, fast, 2GB of memory, SATA. And hardcoded XGA (1024×768) resolution which can not be changed. Awesome? Not so much when you connect it to FullHD monitor. And forget about community — they are mostly stuck on 3.0 and 3.10 kernels based on Freescale code drops. I should dig deeper when looked at i.mx6 hardware ;(
Looks like it is time to check other boards. Minnowboard Max probably — x86 will fully open drivers.