Nintendo hates your ROM downloading. Hates. They hate it even more when they see that they're reporting the first downturn in six years now. This likely fuels them even more to beef up anti-piracy measures in their upcoming 3D (no glasses required!) portable game system, the Nintendo 3DS.
According to Forbes, they didn't want to say exactly what they were doing to fend of game copying and uploading, as they felt talking too much might give hints to the pirates.
Nintendo president Satoru Iwata sounds pissed: We fear a kind of thinking is become widespread that paying for software is meaningless," he said. "We have a strong sense of crisis about this problem."
When it comes to piracy protection, I don't think that Nintendo has been very successful so far. We'll see what other measures they've put into place when we get a better look at the Nintendo 3DS at E3 this summer.