Tool-toy for me, too! I use it in meetings every day: to take notes, web search for topics being discussed in a meeting, email team members assignments
while we're still in the meeting, then email everyone my notes once we're done. And already a voracious reader, my habit has picked up even more since my eDGe was delivered. I've discovered a few other ebook sites thanks to this forum, and I'm well on my way to eating through my discretionary income in ebookstores!
Bonus usage? Making iPad owners jealous. I took out my eDGe during a meeting, surfed to a website we were designing, then took notes on the e-ink side as I solicited feedback from the client. Then I emailed the client my suggestions for the next redesign phase while we were still in the meeting. Sadly, I suspect this backfired. I think the client left the meeting more impressed with the eDGe than our website plans. I might have picked up a couple of cool points though.
I think there's a commercial for the eDGe in that scenario.