What if the Harry Potter universe took place in today's modern world...

So, I was wondering, what would Harry Potter be like if it...took place today. Would there be wands? Would the Marauders Map be necessary?

Wands:
Okay, would wands REALLY be necessary? I mean, they could probably develop the magic of the wands into something smaller, something like a mini flashlight, or if they want to get real "techy" they can also make a wand app with spells with a press of a button.

Marauders Map:
If you're not familiar with the Marauders Map, it's a map that shows all of Hogwarts and all the people in it. But wouldn't there just be a Hogwarts social network? Where you could see people and even talk to them through it?

Thats only 2 things, but you know, I actually think pretty much sometime in the future, all magical stuff will become obsolete.