I just saw about Oceans of First Grade Fun's Calendar VS Promethean link up... TOO BAD, I missed it! :o( But, I figured it's a fun topic to talk about!
We love using our Promethean for calendar!! This year I went completely on Promethean, without a wall calendar. I didn't even miss it! It's easy to update and I felt I was more consistent with the computer version.
Some people commented about the lack of a "reference" calendar during the day. I LOVE LOVE LOVE our Google toolbar. It's a sidebar on the right side of the screen. I added a Weather Bug gadget (our school is a weather bug site, so it's actually the weather right outside our window!), analog clock, and calendar (that also has a digital clock and the "short" date--like Mon.7/4). That stays to the right of your Promethean screen even when using ActivInspire... so it's easy to reference it!!
I am looking into adding a calendar journal / folder / notebook for next year. I've been debating it for such a long time now. What have you tried!!??
Have a fabulous 4th!!