Note: This isn't part of Less Meeting, but we find that many of our iPad/iPhone users find this info helpful.
You might have noticed that you can't always add attendees to your iPad/iPhone Calendar events. If you're having trouble doing so, make sure you've setup your iPad/iPhone calendar app with a service that supports this feature.
In particular, Google Calendar does NOT support this. However, you can setup your Google Calendar account as an Exchange ActiveSync account.
Click here to read Google's Support thread to set this up.