no good flashcards atm. The only one is Gateway 3DS that requires REALLY old firmware.
Dont forget to buy a Extra Charger... the XL doesnt have one...
If you need some good titles to play:
Kingdom hearts 3D
Kid Icarus Uprising
Monster Hunter 3U
Pokemon X Y (soon)
Luigis Mansion
Animal Crossing New Leaf

You probably see that most of them are 1st party...
anyway... if you have more questions feel free to ask
Welcome to the Scene :>

Yo! No 3DS flashcards yet (except for GateWay, but it requires old firmware) but you can still buy DS flashcards. Go for the DSTWO. It might be a bit expensive ($30-$40, other cards cost around $10-$15) but it's the best card you can find. For games to play, here's a short list of my favorite NDS games:

• 999: Nine Hours, Nine Persons, Nine Doors
  
• The World Ends With You

And for 3DS games:

• Zero Escape: Virtue's Last Reward (Sequel to 999)
  
• Kingdom Hearts 3D: Dream Drop Distance
  
• Monster Hunter 3 Ultimate
  
• Mario Kart 7
  
• The Legend of Zelda: Ocarina of Time 3D
  
• Project X Zone

That's about it. If you have any questions, feel free to ask.

This post has been edited by Kiekoes, Sat, July 27th, 2013 at 12:29

Theathrhythm Final Fantasy and Cave Story 3D are also pretty fun games.

My Ak2i is finally broken! At least the paper trick isn't working anymore. I would/will eventually choose the DSTWO. Although I still think the AK2i is pretty snazzy, I can't update my DSi and spend the last 200 Nintendo bucks.