Looks like Sprint's first LTE handset, the LG Viper, will be available for pre-order from Sprint beginning on April 12th for a reasonable $99 after $50 mail-in-rebate, and will be available in all channels "later this month."

The Viper was originally announced alongside the Galaxy Nexus earlier this year at CES as one of Sprint's premier LTE devices and is packing some reasonable specs for the price:

• 4-Inch 480x800 display
• 1.2Ghz dual-core processor
• 1GB RAM
• 5MP rear shooter, VGA front-facing camera
• 4GB built-in storage, microSD card slot
• NFC and Google Wallet
• Android 2.3 (will likely be updated to Android 4.0)

Last we heard, the Viper was said to be released on April 15th, but that seems unlikely with pre-orders beginning on April 12th.