Hard to give a proper pros/cons withouth spending some real time with it but so far from everything I have seen its def above the iPad for me.
The iPad is smaller (thinner and lighter) but also has a smaller screen. The Asus 10.1" compared to the iPads 9.7". Battery life looks to be the same but when you add the Asus keyboard dock to it you can add another 10+ hours where Apple's dock is around 8hrs. I like the feel of the Asus better, the bronze back looks dope and when you add the keyboard dock to it and close it, its nicely protected without having to cover it with some horrible piece of leather.
Asus has better camera's front and back when it comes to quality even though they are the same megapixel. (Actually think the Asus is 1.3mp in the back and Apple only 0.3mp)
Asus has 2 x USB ports, one on each side so another plus and it also comes with a microSD card slot if you feel you need more space. Everything else is the same, Bluetooth, 3G if you want it, Wireless b/g/n
OS's are well yeah you can guess, Apple OS or Android 3.0 Honeycomb however I will be upgrading to 3.1 as soon as I plug it in.
Pricing here in Aus is $499 for the 16GB and another $150 for the keyboard or $780 for the 32GB that includes the keyboard.
Going to pick one up after work today so will come back to you later. Was going to buy Jo one but she wants to play Smurfs so guess she is getting an iPad instead.