Out of one frying pan and into another... what if gmail is down, or closes?
.com domains are sooooo cheap (about $15NZ a year) or $30odd dollars for a .nz domain. Then point all the mail at your host of choice (including just dumping all your email straight to a gmail account.
Then you always have the address, and can move from gmail anytime without having to change your address.
I use the free Google Apps for Domains, its GREAT.
Register a domain, point it at a provider of your choice.. set your email client to use IMAP but with offline/disconnected mode enabled so you retain a copy of all email on your pc. Regularly backup your PC
You are now in a better position than the 99% of normal internet users.. great success!
I'm a huge fan of this service and have just signed up a mate's business to this too. I wonder how many people are using this service. I sure hope they don't change their terms of service all of a sudden. I noticed if you go to their default Google Apps page, http://google.com/a , it gives you the business version by default with "Begin Trial" option. Nearly had a heart attack since I immediately thought they no longer offered the free version! Thankfully the Standard option was a few lines below...