WATERLOO, Ontario, Canada (

TheStreet

) --

Research In Motion

(RIMM)

, the maker of the BlackBerry smartphone, could unveil its new tablet computer next week at a developers' conference in San Francisco, the

Wall Street Journal

reports.

The tablet, dubbed the BlackPad, is scheduled for release in the fourth quarter, said people familiar with the company's plans, the

Journal

reports.

RIM's tablet computer will have a seven-inch touch screen, one or two built-in cameras, and will have Bluetooth and broadband connections. The device will only be able to connect to cellular networks through a BlackBerry, however, the people said.

RIM's tablet won't use the recently revamped BlackBerry 6 operating system but will use a new platform built by

QNX Software Systems

, the

Journal

reports. RIM bought QNX earlier this year.

The developers' conference takes place from Sept. 27-30.

-- Written by Joseph Woelfel

>To contact the writer of this article, click here:

Joseph Woelfel

>To submit a news tip, send an email to:

tips@thestreet.com

.