The bedroom door opened and a light went on, signaling an end to nap time.The toddle , sleepy-eyed, clambered to a swinging stand in his crib.He smiled, reached out to his father, and uttered what is fast becoming the cry of his generation: "iPhone!" Just as adults have a hard time putting down their iPhones, so the device is now the Toy of Choice for many 1-, 2- and 3-year-olds.The phenomenon is attracting the attention and concern of some childhood development specialists. Natasha Sykes, a mother of two in Atlanta, remembers the first time her daughter, Kelsey, now 3 but then barely 2 years old, held her husband's iPhone."She pressed the button and it lit up.I just remember her eyes.It was like 'Whoa!' "The parents were charmed by their daughter's fascination.But then, said Ms.Sykes (herself a Black Berry user), "She got serious about the phone." Kelsey would ask for it.Then she'd cry for it."It was like she'd always want the phone," Ms.Sykes said. Apple, the iPhone's designer and manufacturer, has built its success on machines so user-friendly that even technologically blinded adults can figure out how to work them, so it makes sense that sophisticated children would follow.Tap a picture on the screen and something happens.What could be more fun? The sleepy-eyed toddler who called for the iPhone is one of hundreds of iPhone-loving toddlers whose parents are often proud of their offspring's ability to slide fat fingers across the gadget's screen and pull up photographs of their choice. Many iPhone apps on the market are aimed directly at preschoolers, many of them labeled "educational," such as Toddler Teasers: Shapes, which asks the child to tap a circle or square or triangle; and Pocket Zoo, which streams live video of animals at zoos around the world. Along with fears about dropping and damage, however, many parents sharing iPhones with their young ones feel guilty.They wonder whether it is indeed an educational tool, or a passive amusement like television.The American Academy of Pediatrics is continually reassessing its guidelines to address new forms of "screen time." Dr.Gwenn Schurgin O'Keeffe, a member of the academy's council, said, "We always try to throw in the latest technology, but the cellphone industry is becoming so complex that we always come back to the table and wonder- Should we have a specific guideline for _ " Tovah P. Klein, the director of a research center for Toddler Development worries that fixation on the iPhone screen every time a child is out with parents will limit the child's ability to experience the wider world. As with TV in earlier generations, the world is increasingly divided into those parents who do allow iPhone use and those who don't. A recent post on UrbanBaby.com, asked if anyone had found that their child was more interested in playing with their iPhone than with real toys. The Don't mothers said on the Website: "We don't let our toddler touch our iPhones ... it takes away from creative play." "Please ... just say no. It is not too hard to distract a toddler with, say ... a book." Kathy Hirsh-Pasek, a psychology professor who specializes in early language development, sides with the Don'ts. Research shows that children learn best through activities that help them adapt to the particular situation at hand and interacting with a screen doesn't qualify, she said. Still, Dr. Hirsh-Pasek, struck on a recent visit to New York City by how many parents were handing over their iPhones to their little children in the subway, said she understands the impulse . "This is a magical phone," she said. "I must admit I'm addicted to this phone."

1. what signals end of nap?
2. who did he reach out for?
3. who are apps aiming for?
4. who is Natasha's daughter?
5. how old?
6. what about then?
7. what is the name of the doctor mentioned?
8. she's a member of?
9. what was the recent post on?
10. is there a particular phone mentione?

Numbered answers:
1. bedroom door opened and a light went on
2. his father
3. 1-, 2- and 3-year-olds
4. Kelsey
5. Three
6. 2 years old
7. Dr.Gwenn Schurgin O'Keeffe
8. the academy's council
9. unknown
10. iPhones