Now that the iPod Touch 4th generation has a camera (actually 2 cameras), I am now finally able to assume that it finally trumps the TH55/E1 for capability!
I haven't used my TH55 for a long time, but I've always missed the built-in microphone and camera.
After the iPt4 has a jailbreak, I can't think of a single thing off-hand that it won't be able to do that my TH55/E1 can do.
Any thoughts from the TH55 scene or zealots? I'm sure someone can find something...