Following Sprint’s confirmation that it has chosen not to move forward in releasing a 4G WiMAX-enabled version of RIM’s BlackBerry PlayBook tablet, RIM said it has decided to focus instead on LTE.

BlackBerry was still a big player in the mobile tech scene -- it's a crying shame that its PlayBook tablet never took off.

RIM had previously stated that three 4G versions of its PlayBook — an LTE model for Verizon Wireless, a WiMAX model for Sprint ... RIM also noted that the new BlackBerry Bold 9900 / 9930 ...