Apple Inc. introduced a product to make digital versions of textbooks available on the iPad and beef up the education content available for the tablet computer, which is gaining popularity in classrooms. (Ramin Talaie/BLOOMBERG)

 All digital product purchases, from apps to digital textbooks to singing e-cards, would be subject to the state’s sales tax.

 The proposal is already causing concern in the Maryland Chamber of Commerce. In a blog post, the chamber’s vice president of government affairs called the language “very expansive” and said he would ensure that the proposal would not “cripple Maryland’s technology businesses.”

 A poll by Gonzales Research & Marketing Strategies showed that more than 60 percent of Marylanders say they already pay “too much” in taxes.

What do you think? Should Maryland tax digital downloads to ease a budget shortfall? Is a 6 percent tax too much? Sound off in the comments section below.