How far away can you pictochat on the new Nintendo DSi?

According to the Official Nintendo FAQ it is 65 feet maximum:

Nintendo DSi - PictoChat Troubleshooting Because PictoChat uses the wireless feature of the Nintendo DSi, the following general troubleshooting steps may solve any problems that you are having.

* Make sure you are near enough to the others you are trying to chat with. The range of any model of Nintendo DS is up to 65 feet. * Check for any other devices nearby that could possibly cause interference, such as wireless LAN, microwave ovens, cordless phones, computers, etc. * Make sure there are no obstructions between the systems, and that the systems are facing each other. * If you are experiencing difficulty with the accuracy of the stylus and touch screen, try recalibrating the screen. For help recalibrating the touch screen, click here.