Press the Buttons has the news that if you have a DS at E3 2005, this year's demos will be downloadable via wireless networks. From the article: "Now this has me thinking... since data downloaded into the Nintendo DS wirelessly stays in memory until the system is turned off, wouldn't it be possible to download, say, a Mario Kart DS demo at E3 and then just keep the system in sleep mode whenever it wasn't in use, thereby keeping the demo in your hands for weeks or even months after E3 is over?