@Schamper The main reason I only went ahead with this now is because other push services cost money. It is a business, after all. There's simply no incentive for me to create a plugin to talk to a third-party push messaging service when the forum owner would have to pay per push.
Pushbullet is free (for now, anyway), so I'm not one to turn down an opportunity In the future they may monetise their service, and I imagine we'll adjust accordingly when that happens. Think "Askimet" for WordPress.
In short, theoretically, yes, but you'd have to adapt the code to their own API, that's all
Edit: In hindsight, I should've launched a plugin weekend this weekend... I would've won ALL THE UPVOTES