On independent reviews and new on-line reseller
We found a couple of independent sites that have reviewed Molkky in the USA.
First the folks over at yardgames.org wrote a nice review. While I agree the game does show wear pretty quickly I can tell you it does not hamper your ability to play the game. Also, neither my children or I have ever gotten splinters. 
Next, I found a quick review, but some other nice additional information over at tossinggames.com. The even have a link to a pretty cool video.
Finally, we have a new on-line reseller in addition to qip.com. Tailgate Games also seems to have a nice offering of other outdoor type games.