Kids, of course, come in all varieties and their interests run the gamut, CNET reports. But when it comes to 10-year-old girls, I dare say, there are two ubiquitous desires: getting one’s ears pierced and getting a cell phone. And you may as well let go of that ol’ school stereotype of a preteen–phone glued to ear–gabbing on and on with friends about inanities. The phone is not really for talking. It’s for texting. Which is why my own 10-year-old daughter–too young in her stodgy mom’s eyes for piercings or a cell phone–was ecstatic to have found a workaround for the latter. Earlier this summer, a friend told her about an app for her iPod Touch called Textfree, which assigns her a real phone number and lets her send and receive texts for free…