After talking about Apple Store success, and the Mac and iPod revolutions, Apple CEO talked about the iPhone (of course) at today’s iPhone event.

The iPhone 4, he says, makes p half of the overall iPhone market, and that they’ve seen 125% growth in year-over-year iPhone sales.

iPhone is 5% of the overall mobile phone market, he says.

Then, he moved on to iPad (and this is all pre-announcement stuff, mind you).

He says all states in the US have iPad deployment programs in place or in pilot, and that 1,000 schools have a program. Over 80% of hospitals in the US are also testing or piloting iPads he said.

Cook says that three fourths of all tablets sold are iPads, and notes that it is the undisputed #1 tablet in the world, though more competition is on the way.

He then announced that 250 Million iOS devices have been sold!