This morning, T-Mobile announced that a new update for the Galaxy S2 would include support for Isis, the mobile wallet app that they have teamed with AT&T and Verizon to create. For months, Isis news had cooled, but today is apparently the day for it all to come out. Bloomberg is reporting that Isis' CEO has said that they are planning for a launch in their first markets, Austin, TX and Salt Lake City, next month. This is technically a delay, but the slow rollout has to do with a change in approach from having carriers process payments to putting that side of the business on the credit card companies.