AT&T has announced new data plans for smartphone and tablet customers that will launch this Sunday, Jan. 22. The new smartphone plans include:

° AT&T DataPlus 300MB: US$20 for 300MB;

° AT&T DataPro 3GB: $30 for 3GB;

° AT&T DataPro 5GB: $50 for 5GB, with mobile hotspot/tethering.
Smartphone customers needing additional data can pay $10 per additional gigabyte on the AT&T DataPro 3GB and DataPro 5GB plans; AT&T DataPlus 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.

Existing smartphone and tablet customers will have the choice of keeping their current plans or choosing one of these new plans, and the current $14.99 for 250MB plan for tablet customers will remain available.

More info can be found at .