BlackBerry 10 will be launched officially by RIM at special press events in several cities around the world on 30 January. We expect few surprises as it - and the handsets that will be launched at the same time - has been thoroughly exposed through all manner of picture and specification leaks.

The latest comes in the form of a training manual distributed to the staff of carrier Rogers. Crackberry managed to gets its hands on the PowerPoint presentation and subsequently posted it online for all to see.

In it, RIM boasts of "best in class HTML5 compatibility and performance" for its web browser, claims there will be approximately 70,000 apps available on launch, and states that the 4.2-inch HD screen has 356ppi. However, the presentation also reveals that the battery is 1800mAh, smaller than that claimed by the German review of the BlackBerry Z10 released yesterday. Somebody's got their numbers wrong.

Of course, all these leaks may have been part of RIM's masterplan. Certainly, we're getting more excited by the prospect of BlackBerry 10 and the handsets that will carry it with each and every new revelation. It could be some clever marketing strategy, one that will propel the brand back into the public conciousness.

Or it could just be an employee with a large hole in his or her drawer. Either way, we're not complaining.

Pocket-lint will be in attendance at the launch of BB10 and the BlackBerry Z10 and X10 handsets on 30 January. Make sure you check the site for all the latest news as it happens.

Are you excited by BlackBerry 10? Or have you moved on never to return? Let us know in the comments below...