Patience grasshopper. What would you want them to be saying? That they're having meetings, making presentations, discussing license minutia?
And it's not particularly helpful to be trying to nail down meetings in the middle of summer; heck, it took my bank 5 weeks just to get me to sign my little girls savings account signature card while we traveled around on vacation.
Ultimately, silence could just as likely as not mean they are deep in constructive discussions versus having been turned down flat.