A new poll by stock analysts Piper Jaffray shows very little change since last fall in the status of the iPhone as the coolest electronic device among teens. Nearly half of all of the 5,200 teenagers polled said they already owned an iPhone, a rise of eight percent from the previous survey. Some 62 percent said that they plan on buying an iPhone as their next device (about the same number as said that last time). Only 23 percent of teens indicated they were planning to buy an Android phone, but this did represent a one percent gain from the fall.