AT&T USBConnect Momentum 4G and Mobile Hotspot Elevate 4G scheduled for August 21st launch

With it having been in the works for so long, it's easy to forget that AT&T is ready to flip the switch on its sparkling-new LTE network virtually any second now. But Ma Bell is happy to remind us of its impending true 4G launch by announcing that its first two dedicated LTE devices, the USBConnect Momentum 4G and Mobile Hotspot Elevate 4G, are set to be sold in stores this upcoming Sunday. In addition, users of the USBConnect Adrenaline will be able to download a firmware update on August 26th that turns on its dormant LTE radio. The carrier also officially announced that its DataConnect plans will be offered for $50 per month for 5GB, with usage charges of $10 for each additional GB. Hold your horses, though — the units will be available for purchase and can be used on HSPA+ for now, but it doesn't guarantee AT&T will activate the higher-speed 4G network next week. Nay, we may have to wait just a little longer before Ralph de la Vega pushes the big red button on his desk, but that day is not too distant.