T-Mobile promised to release the HTC Sensation 4G “by June 15th,” and with stores stock ready to roll today is the day the blazing-fast dual-core handset becomes available. We’re still waiting for TMo to completely flip the switch — the phone is listed as temporarily out of stock for new customers — but when they do keep an eye on the carrier’s Twitter. We were teased in the wee hours of the night that a promotion code good for $50 off your online purchase of the Sensation 4G will go live sometime this morning. If you’re still on the fence about the Sensation, you’d do well to go check out our full review. Anyone planning on picking this phone up today?