I got an email from them just because im "staring" the Meteor repo on Github... I really hate when people send me mail that i didnt signup for!
While I'm not a huge fan of people spamming email address they grabbed from Github (Yes I know I can hide my email) I have been contacted because of my GitHub account (because of activity/repos/etc) in the past and had no problem with it. I just don't like mindless spamming which this appears to be. That said where do you draw the line (and do you think this email crosses said line)? (I'm genuinely curious)
If I like the product, I may open-source some plugin or wrapper around their SDK for specifics product or framework, but asking will not make it happens faster.
[1] - http://www.campaignmonitor.com/guides/permission/spam/