Posted by a user over at the official Nintendo Forums that explains how his Wii pulled multiple pictures from his brother's Bluetooth enabled cell phone:
Source can be found here
QUOTE said:Yep, it's true. I just went in my photo channel just to look at the opening menu (I had no pictures on the SD card, or so I thought) when I clicked on the left button. It said that there were 12 pictures available. So, I was like "what's going on here" and viewed them. It turned out to be pictures from my brother's phone. I was thinking "Wow, cool" but my other brother immediately turned off his bluetooth on his phone. So, in conclusion, apparently the Wii just eats up photos from any device around it that has bluetooth. I don't know if this is known already or not, but in case it isn't, I'm telling you now. I should note that I had to have an SD card in to receive the pictures.
Source can be found here