Yes, I have. It was hard to find working Cordova Camera packages, I spent a lot more time with this than I expected… I used this plugin:
I had to do some patching to fix a memory leak, disabling flash (for my particular app), and also it took some work to convert it for slingshot upload properly. And I still have an outstanding issue that the saved image size is really small on Android that I will get to. Actually, I had to sub some of the work, since fixing the Objective C code was beyond me. I also need to investigate disabling it and re-enabling it, I don’t understand the issues right now with that, right now I just hide the preview window as needed, but I think it is capturing from the camera whenever the app is running.
Good news, I see that it looks like someone is maintaining it as of May 18. I did my work with it a few months ago but need to get back to it. If you find another plugin that works better, let me know!
But it can be done! You may want to consider prototyping it in Cordova before moving it into Meteor.