If you’re interested in developing for BlackBerry 10 and haven’t been able to attend a Jam, or you went to a Jam but need a quick refresher on what you learned, we have some great news for you. RIM has gone ahead and posted the developer presentations from the Jam World Tour series online for you to check out. All 12 presentations are available, including those for Native, Web, and Enterprise development. You can hit the link below to check out any or all of the BlackBerry 10 Jam World Tour presentations.
Source : Crackberry