OP, I went through a thread like this of my own just a few weeks ago. Like you I see an opportunity to use this thing even after its life as a phone has ended. I have two kids who are always looking to jump on the internet for this or that... and IMO this is a great device for doing just that.
When you throw in the GPS, MP3 player and camera/video abilities it also has, man this thing is going to make for a great little device in its own right for years to come. All of my old flip phones, and even my Blackberries just sit around collecting dust now that I'm done with them. But this device is like a mini-tablet.
That's pretty cool.