I'm on the sales team here at PagerDuty. Feel free to send me a note at mark at pagerduty dot com and we can work something out for your team regardless of size.
Everyone wants a piece of mobile dev tools. Think Twitter + Crashlytics and now Facebook + Parse. As some might remember, Facebook at one point only had Heroku as their core Dev partner [1], so it only makes sense for Facebook to get in this space.