We reported earlier that AT&T will release their version of the mighty Samsung I9000 Galaxy S, on 18 July and T-Mobile on 21 July. T-Mobile wanted to be one better than AT&T, hence, they rescheduled the release date of Samsung Vibrant to 15 July. Samsung Vibrant is T-Mobile’s version of Samsung I9000 Galaxy S.
An official at phonedog got a reply via twitter from TMobile_USA that Samsung Vibrant launch is scheduled for 15 July. So, it is official now and T-Mobile won the race against AT&T for bringing the first Galaxy S in US. The cost will be $199 on two year contract (same as AT&T).
The hardware is the same as in Captivate and I9000 Galaxy S. We have reported about the hardware earlier and you can check the details here.