It's on Costco.com now for TMob. 16 gig blue only. But it's $249. No rebate. Free activation though for new customers. But it looks like an $18 upgrade fee plus a possible plan change depending on what you're already on.
If you're on the value plan they sell it for $380 out the door. Pretty impressive since if you bought it at a tmobile store you'd pay over $600 for it.
Right now, the Costco site will take you to membershipwireless which has the white 16GB model only. Oddly, the individual plans I was able to see didn't include data. In other words, the site options were broken enough for me that purchasing wasn't an option.
If you're on the value plan they sell it for $380 out the door. Pretty impressive since if you bought it at a tmobile store you'd pay over $600 for it.