I tried to keep my Nook Color Ice Cream Sandwich post concise but I actually have a lot more to talk about so here goes. Remember that I'm running CyanogenMod 9.
Where to start?
I guess the first thing is that by default the Nook Color runs Ice Cream Sandwich (ICS) in Tablet UI mode. What's that mean? Here's the best I can find:
I also found an article in Computerworld about the Tablet UI.
If you need to get some sleep you can go read the Android 4.0 SDK documentation. Start with the Action Bar.
Anyway here's what my homescreen looks like in portrait and then landscape:
I'm using the stock ICS launcher, Trebuchet.
The top left is obviously the "Search Bar." At the far right, the grid opens the App drawer. There's not an App dock at the bottom in the Tablet UI.
I can only get the grid to be 6 icons wide and 5 icons deep.
The "Notification Bar" is at the bottom. The icons from the left are Return, Home, and Recent Apps. The notification area is at the right. You didn't see a Menu icon did you?
Here's what "Recent Apps" looks like:
If you tap one of these thumbnails you are taken to that app. If you swipe it right or left the thumbnail disappears. I'm not positive whether the app is actually closed at that point or not. Notice that the Return icon changed to what I'll call a Dismiss icon. Tap it and the "Recent Apps" menu disappears.
Swiping up in the Notification Area gives you a "Quick Settings" menu:
Swiping one of the notifications, in this case "Snapshot captured." dismisses that notification. Tapping the icon that looks like 3 sliders opens a subset of the Settings menu.
Check the date and time to see how long it took me to get that screenshot. Tap the "Settings" choice and you get the full "Settings" menu (finally).
In the "Wi-Fi" settings you begin to see the tablet presentation. The action choices are in a column on the left and the details are in a column on the right.
The "Battery" display shows which resources have consumed the battery.
In the "Apps" display you see how much memory each application is using.
If you tap on an app you get more details.
But notice that you can "Disable" an app from here. That is similar to "freezing" an app with Titanium Backup in prior versions of Android.
The "Performance" setting gives a strong warning when you tap it.
This is why.
You can tweak many parameters affecting performance and battery consumption. You can see that I'm overclocked to 1100 MHz. Also that I don't have "Set on boot" checked. This means that if the Nook reboots it defaults to stock clockings.
Here's the "About tablet" display showing the details of the ROM:
Here's the details on the "Homescreen" settings:
The "Storage" display shows internal and external SD storage.
The "Data usage" display shows 3G or Wi-Fi usage by app.
Tapping the "App drawer" icon at the top right of the homescreen brings up the App drawer.
If you scroll the App drawer to the right you are shown the Wizards drawer.
Here's a good example of how ICS apps adjust to the Tablet UI:
Notice the two column layout.
While we're looking at this notice the three dots icon at the top right. This is an ICS compatible app's Menu icon.
As a contrast here's a non-ICS compatible app, Car Cast:
Since the Car Cast doesn't present the ICS Menu icon ICS provides to the left of the Notification area.
I'm running Flipboard as well. It complained of the screen size when I installed it but it has run fine. I show it here to illustrate that it is not tablet aware.
This is Flipboard flipping pages:
You can tell it's flipping top to bottom like a phone rather than side to side like on the iPad.
I'm running the Swype Beta that was released 06/20/12. Prior to that it wouldn't even install,
There's the Dismiss icon in the lower left to dismiss the keyboard.
I worked for hours over days to get the wallpaper correct. I tried every size and every crop method I could find. Finally I came across a forum post referencing Wallpaper Wizardrii. Fixed it first time. Awesome.
I have an issue with the battery icon still showing charging status after I had unplugged the charger. leapinlar suggested that I try resetting the battery stats. Let me net it out.
CWM is the same thing as ClockworkMod is the same thing as ROM Manager.
ROM Manager comes pre-installed on CM9. I accidentally tapped the top menu item and flashed ClockworkMod Recovery onto the eMMC recovery. leapinlar has instructions on how to use a modified CWM recovery from a uSD in his tips thread.
By the way that didn't help my battery indicator. I think it's a physical problem with the microUSB jack on the Nook.
Since ICS isn't an "official" CyanogenMod release yet you'll probably want to flash a new "nightly" from time to time.
Here's how I do it: