It appears that interest in these gizmos has subsided. But a stock of eMessage units has turned up at ubid.com, and they're going pretty cheap. Thought some of you might be interested.
Here's a quick reminder. eMessage units are identical (or pretty similar) to MailStation units with two main differences. One, they're a yucky white-creamish color. (I bet grandma won't mind.) Two, they let you modify mailserver and ISP settings. So you can use these with any ISP and any mail account without any hacking.
The auctions start off at $9 per unit, and usually end with $19-$29 per unit. I just picked up three units @ $19 per.
Good luck y'all.