Just to be warned this info may not be 100% accurate. The info comes from the neogaf translators. Some things may be a little skewed. I am sure Nintendo will release their full translation of Iwata’s speech.

– talk of Vitality Sensor
– Kid Icarus: Uprising due out after this Summer
– Nintendo would like to add more content to the Virtual Console service for 3DS
– 3D Classics version of Excitebike will be distributed for free at eShop launch (may be Japan only)
– might see more free classic games via eShop as an incentive to use StreetPass and SpotPass and eShop
– Vitality Sensor is easy to use for 80% of people, but they want to get it up to 99%, still in development
– planning first-party releases around third-party
– Nintendo will ‘accommodate’ social networking
– Nintendo believes buttons are needed for gaming
– plans for E3 unveiling of Wii successor were made due to the logistics of getting everyone to E3
– Nintendo claims to have data showing that social networking services don’t hurt Nintendo DS playtime, and even increase activity in Japan
– active users in Japan went from 51% in July to 48% in January, but in the US it rose from 62% to 63%
– Pokemon Black/White has sold more than previous versions globally in same time frame
– EU/US 3DS second week sales were lower than expectations
– Nintendo says they “need to make efforts” to improve those sales

info gathered from HERE.