The new MacBook Air includes flash storage, 802.11-N Wi-Fi and a Core 2 Duo processor and improved battery enabling 5-7 hours of battery life when surfing over Wi-Fi and 30 days on standby time. Weighing in at only 2.3 pounds, it costs between $1,000 and $1,600.
I think even this should not be that far, I saw something at D-link, which is an approach towards the same where it supplies power (low, below +5v) to wireless devices. It will be cool if the whole power supply to a NoteBook can be totally wireless.
Ok, for aspiring individuals who wants to try this out and is in India, you may be surprised that both are rather affordable. Vodafone (erstwhile Orange/Hutch) give you unlimited access for Rs. 499 (at the time of writing this article).