I took it everywhere even before it replaced my MP3 player, but especially after -- that started as "I guess I'll use the tablet as a MP3 player until my real MP3 player gets back from being fixed" and became a permanent habit thanks to iriver's 3 month repair time and how useful it is; I can listen to songs AND hear when someone sets off my highlight on IRC.

I liked the N800, but the N810's slightly smaller form factor and keyboard somehow made it into a must-bring companion as opposed to something I like to have if a chance to read might come up.

It's helped me remember my phone more often, too. I've thought, "okay, now to connect and check my RSS feeds" while heading out the door only to realize I had left my phone inside the house several times.