AT&T is launching a new data plan structure this Sunday, January 22. People on unlimited plans may actually decide to bail to these news plans as AT&T crippled users devices on unlimited plans once they crossed the 2GB mark.

If you want to move to one of these new plans you must make the change yourself, they are not automatic. While these plans still offer too little data for the price, AT&T has dropped the price per Gigabyte to $10 from the current Rate $12.50 per Gigabyte.

We also find it fishy that AT&T claims 97% of their users use under 2GB a month but are taking away the $25 2GB plan and replacing it with a $30 3GB plan.

The new smartphone plans include:

AT&T Data Plus 300MB: $20 for 300MB
AT&T Data Pro 3GB: $30 for 3GB
AT&T Data Pro 5GB: $50 for 5GB, with mobile hotspot / tethering

Smartphone customers needing additional data can pay $10 per additional gigabyte on the AT&T Data Pro 3GB and Data Pro 5GB plans; AT&T Data Plus users will receive an extra 300MB for $20.

The new tablet plans* include:

AT&T DataConnect 3GB: $30 for 3GB
AT&T DataConnect 5GB: $50 for 5GB

[Via AT&T]