I have both the Bobro & GG&G bipods.
I see that Bobro lists them on their site again but now as not in stock as before it was listed as in coming soon. Also they now show the picture with the old thumb screw mount without the spring loaded legs but describe it as "BLAC system"
Frankly, I don't find the need to quickly remove the bipod from my precision AR, YMMV.
If the QD is something you can't live without the Bobro is the one you want, otherwise the GG&G will do fine, just without the QD & spring loaded quick deploy legs!
Comparison
Early Bobro/GG&G: Top
Bobro: Bottom
Not my pic, I would have compared mine side by side but they are all locked away. IIRC, my Brobo is different from the bottom one as it has a knob to adjust the tension to keep it level similar to the top pic.
:
Edit:
GG& G now shows different versions of their bipod: std & hd models w/wo qd options.
http://www.gggaz.com/tactical-bipods.html
IIRC, it was designed by Bobro for them, or the rights to make it were licensed/sold to them.