I have Qt 5.3.0 release running on my Wandboard solo. The main goal was to add VPU decoding to videos played in QML (only available in 5.3.0), as well as text animations with GPU acceleration.
Instruction to build are in the readme. There was 1 issue, I had to run this command in order for video to display:
echo -n 32 > /sys/class/graphics/fb0/bits_per_pixel
Hopefully others will find this useful. Please let me know if you find any issues.