[AS3 AIR] 2880x2880 Size Limit, Camera, Filter, CameraRoll Issues & Finger Friendly Components

Question

AS3 AIR ANDROID
I started playing with this Adobe AIR for Adroid by building an app that would let the user take a picture using the mobile device's native camera app.  Then, I'm applying filter effects to make the image look cool.  Then, I'm allowing the user to save the image back to the camera roll.
Here are some questions that I have:
KEEPING UP WITH CURRENT TECHNOLOGY
Are we limited to the 2880x2880 stage size limit?  Although, this dimension does yield 8+megapixels, it's not in the ratio that most camera sensors are built (widescreen).  Plus, you can bet that newer cameras will have even higher dimensions.  Will this be updated to keep up with current technology requirements?
IMPORTING & MANIPULATING CAMERA DATA
Code
var bmpData:BitmapData = new BitmapData($loader.width, $loader.height);
bmpData.draw(DisplayObject($loader));
bmp = new Bitmap(bmpData);
bmp.width = Capabilities.screenResolutionX;
bmp.height = Capabilities.screenResolutionY;
if (CameraRoll.supportsAddBitmapData) {
    var cameraRoll:CameraRoll = new CameraRoll();              
    cameraRoll.addEventListener(ErrorEvent.ERROR, onCrError);
    cameraRoll.addEventListener(Event.COMPLETE, onCrComplete);
    var savedBmpData:BitmapData = new BitmapData (bmp.width, bmp.height);
    savedBmpData.draw(DisplayObject(bmp));
    cameraRoll.addBitmapData(savedBmpData);
} else {
    trace("~" + "Camera Roll not supported for this device.");
addChild(bmp);
When you capture an image using the mobile device's camera app, you have to use the Loader object.
So, here, I am doing just that with these steps:
First, I'm creating a BitmapData object and sizing it the same as the camera image.
Pass the camera image into the BitmapData object.
Create a Bitmap object and pass in the BitmapData.
Resize it to fit on the stage.
Check for Camera Roll and then create a savedBmpData BitmapData object at the size of the screen.
Pass in the bmp.
Save it to the Camera Roll.
The problem is that when the image is displayed on the phone, it shows THE ENTIRE (uncropped) image.  However, the image that is saved to the phone is only the top 800x480 corner of the image.  What is wrong?  How do we save an image to the Camera Roll that is larger than the display area of the phone.  It seems like the only way to save the entire camera image is to resize it to fit the stage and then capture the stage into a bitmapData object.
FILTERS
If you apply any filters to the bitmapData object, the filter effects will display on the phone, but if the image is saved to the Camera Roll, then all the filters are lost and it only saves the original (unfiltered) image.
FINGER FRIENDLY UI COMPONENTS
Do they exist?
ADDITIONAL NOTES
The max image size that can be saved is 2039x2039 pixels on the HTC Evo.  Anything bigger than this resulted in a CameraRoll Error #1 (which there is no documentation for what that means ANYWHERE on the web).

Answer 1