Can't make the BlackBerry Jam in Amsterdam?
Don't panic, you can still meet up with other line-minded developers and get the know how at the BlackBerry 10 Mini Jam in London. The event has been organised by Skills Matter and sponsored by BlackBerry.
From the site:
BlackBerry invites you to join us for a mini BlackBerry 10 Jam – a half-day event dedicated to providing the developer community with insights on the BlackBerry 10 platform; its strengths, the vision, and how developers can make apps that stand out to app-hungry BlackBerry users.
If you're in the UK and interested in BlackBerry 10 development then I'd strongly suggest checking it out.
More Information: Skills Matter