This shared inbox approach reminds me of helpmonks.com, but more.

This is a neat concept - reminds me in some ways of mailgun when they were able to take a spin on email hosting to allow multiple domains relatively cheap but measure the number of emails.

I'll be signing up at least two things I can try it out with. The pricing information seems limited at present - until you realize it says 5000 poeple. Having one more paid category listed would be ideal.