You cannot as of 9-14-2011 get Adobe for the 3DS. Nintendo has not announced that there will be adobe on the browser, but that doesn't mean it won't be.
If you mean the 3DS it comes out in Fall 2011
i think you mean the 3ds. and no. only pics!
No, that'd mean the 3DS would be open to all manner of software piracy. The way to download games using it is over wi-fi, using the 3DS Store.
Technically, you can't reserve the 3DS anywhere, if by "reserve" you mean "preorder," as the system is already out. However, you may be able to get any store that sells the 3DS to temporarily hold a system for you to pick it up later.
There's a chance you might corrupt the 3DS's firmware, the bit of programming that operates the console. This can mean the 3DS becomes 'bricked', ie, it is useless, it no longer works.
Yes no metter what 3DS is a 3DS
The 3DS XL came after the 3DS.
The blue light on the side of the 3DS shows that the 3DS is on and the light on the hinge of the 3DS shows that SpotPass data can be downloaded
There is no such thing as a 3DS DSi.
Assuming you mean old DS games, yes, the 3DS can play any of them, as long as they do not require Slot-2, like Guitar Hero.
Basically the 3DS XL is a larger 3DS so if you want a larger screen size, go for the 3DS XL. The 3DS is cheaper and is smaller if the XL is too bulky for you.