Joystiq Review
In addition, I wasn't able to explore the eShop or play Virtual Console games because that doesn't exist yet! The download shop will be added in an update in "late May," according to Nintendo, leaving the 3DS without the ability to download games at launch. Because of this, I also wasn't able to test the DSiWare software transfer. It's a noticeable omission, especially if, say, you have a Japanese unit and want a convenient way to get games on it.
The biggest negatives to the 3DS (besides the absent eShop) are the battery life and the DS emulation. You'll need to get used to charging the system every time you come home, and while the DS display isn't bad enough to necessitate carrying another system around, it's at least worth playing DS games on a real DS at home.
The real measure of a system is its software lineup, which it's too early to evaluate -- but given Nintendo's dominance in the handheld space, expect the 3DS to be pretty well-supported. In general, looking at it as a gadget, I'm pretty impressed. The 3D feature works as advertised (if you've got two working eyes, of course), is quite pleasant to behold and to hold, and it's loaded with built-in content that is actually worthwhile.
http://www.joystiq.com/2011/03/10/nintendo-3ds-review/
