I didn't see this posted.
Source: http://ds-x2.com/index.php?id=4180In yet another confirmation that Nintendo's first-party back catalogue will not be available to download for free on the Revolution, Mr. Iwata also confirmed that Revolution users will be able to download demos for the Nintendo DS to the console and then transfer them wirelessly to their handhelds. We look forward to hearing more on this service next month when Mr. Iwata announced that Nintendo will reveal more information on their Wi-Fi connection to be used in games for the Nintendo DS and Nintendo Revolution.