According to a recently leaked internal document, Sprint plans to light up a nice list of 4G LTE markets here in the U.S. on April 12. A total of 21 markets will have their switches flipped, bringing their grand total of active 4G markets to nearly 100 now. 

Today, AT&T is launching a few more 4G LTE markets to go along with the well-sized list that went live earlier this month. Starting now, grape growers down in California can access 4G LTE on their compatible AT&T devices, as well as folks in Jackson, TN and even Kalamazoo, Mich.

On a funny note, every time I hear “Kalamazoo,” I sing the little T-Mobile 4G jingle. “One, two, Kalamazoo.” 

The Facebook announcements continue on this morning with HTC and AT&T partnering up to release the first Facebook-focused phone, the HTC First. It’s available April 12 (same day as Facebook Home) for $99.99 on contract at AT&T. You can pre-order today if you’d like. Oh, it has LTE as well. The device sports a Qualcomm Snapdragon 400 dual-core processor, 4.3″ 720p display, 5MP rear camera, 1GB RAM, and runs Android 4.1.

This morning, AT&T is flipping the 4G LTE switch in a nice big handful of U.S. cities. All the way across from California to Florida, customers will now have the ability to bask in high data speeds.

To see the full list, have a look below. 

The Casio G’z0ne Commando rugged line of smartphones has been enough of an underground success that Verizon is on the verge of carrying its newest family member, the G’z0ne Commando 811. Fitted with 4G LTE, dual-cameras, microSD card slot, and a removable battery, this looks every bit as rugged as its older brother. The Commando 811, which stopped off at the FCC, is dust, water, and shock resistant, making it the ultimate outdoors and action sports smartphone – at least that’s how it’ll be sold. 

AT&T announced this morning that they are to bring Amazon’s Kindle Fire HD 8.9″ tablet, complete with 4G LTE to their network starting April 5. Customers can pick up the device for $399, but can save up to $150 when signing a new two year agreement with the device. AT&T is the first carrier in the U.S. to offer the device at a subsidized price point. 

This morning, Verizon announced the completion of its total purchase of Mohave Wireless from Rio Virgin and Frontier Communications. The wireless provider currently serves a population of 203,000 with 3G service in the northwest Arizona region. With Verizon now running the show, Mohave customers will begin to see benefits from this buyout starting in 2014, when network integration is set for completion. 

The Android 4.2.2 (JDQ39) factory images for the Verizon Galaxy Nexus have been posted. For those not familiar, factory images allow you to flash your phone back to a 100% stock state, as if you had just pulled it out of the box. You’ll find instructions for flashing factory images here.

The new 4.2.2 binaries are available as well.

Update:  They also added 4.2.1 factory images for the Sprint Galaxy Nexus.

Via:  Google Developers [Binaries]