It has been known for a while that developers could get themselves a Limited Edition BlackBerry 10 device but it wasn't always clear who, or how one would qualify. Today, RIM has outlined the criteria for developers.
It may look as simple as three easy steps, however, in step one, you must submit a qualifying app. The qualifying app has to meet certain criteria too - web launchers, sound apps and BlackBerry PlayBook apps submitted without any changes or modifications are just a few of the apps that will NOT qualify for a limited edition device. You can find more details on the BlackBerry Developer site.
Your app must be submitted between now and January 21st, 2013 and you must also register to the Limited Edition Trade-Up program. Also note, this offer is also only available to those developers who have a Dev Alpha device already.
Don't forget, developers can also get their hands on a Dev Alpha C by registering too. Criteria must also be met for this. And if you don't already know, currently Dev Alpha owners have an update available. There's a lot happening right now with BlackBerry Jam Asia in motion, so keep it locked to CrackBerry for all the latest news.
Source: BlackBerry Developers Blog