How does the weak US$ help or hurt my US marketing efforts?
A weak US dollar will increase the price pressure on your products. A weak US dollar also means that the cost of market development is far lower than it was when the US dollar was a stronger currency. The ideal strategy is to invest in US market development while the dollar is weak, and then have your products well established in the US as the dollar strengthens (which it eventually will). This will give your company an advantage over competitors who wait until imports begin to increase before approaching the US market.