I plan on picking up an Ipad 3 (will be first one) when they come out. I am currently on the unlimited data plan on my iphone with AT&T. My question is, should I just pick up a wifi ipad3 and tether to my iphone which means upgrading to the 5gb plan or buy a wifi +3G ipad? What are the pros and cons? I always have my iphone on me so I dont foresee a problem there. I have read several posts on here where using your iphone as a hotspot drains the battery pretty quickly. For whats its worth, I have a 16gb iphone 4S. Thanks for any advice guys!