Talk about a concept whose time has come -- the pop-out joystick for mobile phones. From initial research, this design gets pressed in and turned to allow the 'enter' button in the middle of the d-pad to actually protrude from the handset for all those times when, you know, you need more tactile control of those J2ME or Mophun games -- hey, you might even feel like you're on a PS3 (not). Regardless, this is an extra-cool development for the mobile space. For anything more than phone menu navigation (ahem, mobile gaming), we for one hope this concept comes to light in future mobiles, because you haven't lived unless you've fragged some folks on that 2 inch screen.

Anyone who's had the good fortune of seeing a Pearl in the flesh knows that it's one extraordinarily good looking phone, particularly by BlackBerry standards. Unfortunately, where we come from, phones that don't ring are called "paperweights" -- which is exactly what the Pearl becomes when the trackball gets nudged. You know, like if it's in your pocket, or your purse, or pretty much anywhere besides a stationary counter top. As it turns out, when the phone rings, the handset immediately silences the ringer with even the slightest movement of the trackball, regardless of whether keylock is enabled. While we do appreciate the Pearl taking the initiative for us and ignoring phone calls so we don't have to, there is an occasional situation where we like to make the decision ourselves, and until RIM issues a fix users simply don't have that option. Strangely, two Engadget editors patiently attempted to explain the issue to a RIM representative this week at CTIA for several minutes without success; we think the first step to RIM issuing a fix would be for the company to understand the problem, so we could be in for a bit of a wait. Maybe the words we were using were too big?

Today's Boy Genius BlackBerry Pearl (8100) leak: the User Guide and a good long look at the trackball that gives the Pearl its name. From the guide it looks like it has built-in support for Push-to-Talk, which Cingular will most likely take advantage of when it releases the Pearl later on the year. The Boy Genius also confirmed to us that the Cingular version will have cosmetically differences from the T-Mobile release. Boy Genius also sent us a video of the Pearl's trackball -- a setting in the phone app enables the trackball to changes colors to a ringtone set and during a phonecall.

[Thanks to Jibi for deconstructing the Pearl .xml files]

Download - User Guide
Watch - Trackball video [MOV]