Apple iPad Will Use AT&T 3G Network

Apple's new iPad will use Wi-Fi and also AT&T's 3G wireless network. Users can opt for using Wi-Fi only, as iTouch users do, or can buy 3G service. AT&T offers a 250-megabyte plan for $15 a month, and an unlimited plan for $30, neither requiring a contract.

Those pricing levels more closely resemble an iPhone data plan than a data card subscription, which costs $60 a month, and typically requires a contract.

Some observers might say the iPad subscriptions represent a "higher-quality" or higher-margin revenue source than is typical for iPhone subscriptions, which also represent $30 a month in fees, because AT&T gets the traffic without having to factor in a subsidy for the devices.

One issue is how much data iPad users will consume. Users of the iPhone typically consume about 400 megabytes a month, where mobile PC card users tend to consumer about 2 gigabytes a month. A reasonable estimate is that iPad usage will fall somewhere between those levels.