MMORPG.com has a clue that Star Wars: The Old Republic may use microtransactions when the MMORPG goes live, based on some information picked up in the Terms of Service for the recently announced testing program for the game. They offer a screenshot showing the terms in question, with are as follows:

(H) You acknowledge and agree that all points acquired during the Game program are non-refundable and have no monetary value.

(I) You acknowledge and agree that all items acquired for points during the Game Program are non-refundable and non-tradable.

(J) You acknowledge and agree that BWA reserves the right to add or remove points from your account at any time and without warning.

(K) You acknowledge and agree that BWA reserves the right to change/add/remove points rewarded in the Game store at any time and without warning.