I am not ready to name the brand, since it looks like the 2010 model may have fixed the problem (from what I could see from the photos on the web site). I guess the board was designed for novice sailors to begin the freeride experience, but if it won't plane without a ton of power, then what a blunder.
I guess it is incumbent upon the buyer to know something about board design before buying, but in this case, most novice or intermediate sailors probably would not notice the soft rails or be aware of the impact.
It's also hard to believe that a major company with years of experience would design something like this, but to keep all of this in perspective, this is just my opinion and others could disagree. Therefore, I think it's best to not identify the brand.
Formula 160; iSonic 111; HiFly Move 105; Tiga 263; '85 Mistral Superlight.
Maui Sails TR 11.0; 9.2; 8.4; 7.6; 6.6; Maui Sails Switch 6.0; 5.2; Maui Sails Global 4.5; 4.0.