Nintendo hasn't announced the color red for the Nintendo 3DS, even though it was a color on E3 2010 pictures.
Although red Nintendo 3DSs were shown in some of the pictures at E3 2010, Nintendo hasn't announced the color red for the 3DS. Currently, there are two colors, Cosmo Black and Aqua Blue.
The price at Target (and really, any store you go to with the exception of used 3DSs at Gamestop) is Nintendo's MSRP, $169.99 (plus tax)
They do work on flat screens.
Yes
Sharp and Hitachi.
Nintendo DSiXL, it has larger screens
Two, one is a touch screen
One is the touch screen.
Yes, they make screens.
The Nintendo Dsi XL is in fact bigger than the Nintendo Dsi, hence the name Dsi XL which stands for "Extra Large." The only thing that's changed is that the screens are about 2 inches bigger.
Screens are of Fine screens (small openings) Coarse screens (relatively large compared to fine)