Ahead of the announcement of a new iPhone and the iPhone 4.0 OS, AT&T has completely overhauled its wireless 3G data plans. In addition, it has announced tethering plans that will be available when the new iPhone OS is released.
The old unlimited data plan, costing $30/month, has been replaced with a $25/month plan that limits data to 2GB. Additional blocks of 1GB will cost $10. A $15/month plan caps data at 200MB, with additional blocks of 200MB for $15. Those with existing $30 unlimited plans can stick with it if they wish.
Tethering, the ability to connect your Mac to an iPhone and use its Internet connection, will cost $20 per month for those on the new $25 plan. You must be on the $25 plan to use tethering.
This also affects iPad 3G users, who will have to choose between the new $25 and $15 plans when signing up for service. They can also stick with the $30/unlimited plan, but it is unclear what happens when iPad users skip a month with this data plan.
On Monday morning Steve Jobs will take the stage at the annual Apple Worldwide Developers Conference. It is anticipated that he will announce new iPhone hardware as well as release dates for the iPhone OS 4.0 operating system for current iPhone 3GS models.