And gateway clearly doesn't care about having sky3ds as competition as they're two very different products.
Gateway has a lot of high quality features such as region free, a good fast rom selector and game dumping that you can't get on sky3ds but you can't use the latest firmware. They can also upgrade firmware so that you don't have to buy a new cartridge.
Sky3ds only does the absolute basics of rom loading without region free, but can be used on the latest firmware. They can't upgrade firmware and need a new card purchase for new features.
They are just very different products, gateway doesn't care about that sort of competition.