Heard that the top i7 range will be equipped with Intel HD5000 and better battery life. Not sure how true this is as all the reviewed products are based on i5.
After seeing so many reviews, I can sum up that it is a decent product aiming right in between the laptop and tablet category. For those that bought a laptop in the last 2 years and have an ipad may not feel the need to switch. But for those who really like the portability, especially just slightly heavier than ipad 2, it is worth considering. Drawbacks would be lack of 4G/LTE support and just 1 USB port.