Yes! You can use the AeroPress for tea. Just follow these steps:
Insert the plunger into the AeroPress chamber (about an inch in).
Set the AeroPress on your countertop with the plunger down.
Pour hot water into the chamber and let your tea steep for as long as you need to (check the instructions on your tea for optimal steeping times).
Place a filter into the AeroPress filter cap.
Screw the cap onto the chamber.
Invert your mug and press down.
NOTE: Be careful, as you can spill hot water when using the inverted method.