Talk of a watch peripheral for the BlackBerry gained credibility on Monday through a slip of new information. Probably to be called the inPulse, the RIM add-on would resemble some Bluetooth watches but have an OLED display that shows much more detailed information. Shots and a description from CrackBerry indicate the watch would show previews of calls, e-mail and RSS feeds from a paired BlackBerry and give owners an easy way of deciding whether or not to reply without having to take the phone out of a pocket.

Other details are less evident, but the energy-saving nature of OLED should produce "solid" battery life. It's equally uncertain whether the watch represents a loosening of restrictions on who can access data and when. RIM isn't making the accessory itself but is giving its official blessing to the design.

Release information for the watch isn't available at this stage and may not be for some months as the add-on is only known so far to exist in renderings rather than as a physical prototype.