MarketPress: Keep "Item(s) Added" (don't fade back to button)

When a customer adds a product to the cart, the button is “Add to Cart” button is replaced with “Item(s) added” — which is great! However, is there anyway it could just stay there, and not revert back to the “Add Now” button?

One future feature request would be to have a max qty for each product. Once that max has been reached, the button is replaced with “Item in Cart”.