Following up with my previous post. Here's a good graphic representation of how I interact with different devices throughout the day and why the @ello iOS app is so valuable to me. I should also add I much prefer push notifications vs. email notifications. Push notifications feel more community oriented (as multiple notifications stack up), while email notifications feel more isolated (as they enter the email stream which in and of itself can be challenging to manage on a good day).
Original image and post here: http://www.lukew.com/ff/entry.asp?1943