This is what we did:
1) Gave the exclusive to the author we thought had the most influence in our target demo. (Sarah Lacy + Erin Griffith at Pandodaily).
2) Leveraged that story into a blog post, that got retweeted by Eric Ries. (http://blog.meeteor.com/18-days-from-sxsw-mvp-to-launch-our-...)
3) Leveraged that momentum into stories at other outlets.