In a telling sign of the shifting smartphone battle at U.S. law firms, the CIO of the nation’s largest BlackBerry shop is anticipating mass migrations away from the platform within six months.

The CIO, DLA Piper’s Don Jaycox, says he’s responsible for approximately 3,500 smartphone users. Despite having Apple as a client, an overwhelming 80 percent of DLA lawyers and support staff are still on BlackBerry devices, with just 20 percent deployed on more modern touchscreen devices like the iPhone. “But by the end of the year I expect those numbers to be much closer to 50/50,” Jaycox says.