More Inviting Invites!

Now, the profile pictures, unlike in that attachment, showed up fine in his email, so that's not the problem. The problem is that for an ingenious project that can intrigue in 10 words or less—"Help make awesome educational games for a $10 computer" squeaks in at nine, counting articles—this invite is so anodyne that I can see how my friend might mistake it for accidentally-sent spam. My guess is that it's basically the message that came with the social-network package being used here, and it just got overlooked because, well, who's less likely to receive an invite than the people putting together the site? Anyway, I bring it up because the effort/result ratio here seems auspicious—just put in a sentence or two about the actual project, and I bet they'll have considerably more impact. 

P. S. Also, instead of inviting people to join something they've never seen before, which does seem spammy, I'd prefer to invite them to just check the project out, like with a link to that excellent 5-minute video introduction. Can that be done in the template being used?