For example, I saw a picture that said 'find out the name of your cell phone' and you had to put the final 3 digits of your number into this formula and then it gave you a name blah blah blah.

The formula was @[XXX:0] so my number ends in 442 so the formula would be @[442:0]. I just put that in my status box and pressed enter to see what it would do and it came up with a name. Now obviously this isn't the name of my phone, but what? why? what code is this? how? why?