Uncertain
I'm thinking of getting a new camera soon... I'm looking at two right now. Very similar in many ways. They're both offspring of my current camera, so I wouldn't have to re-learn the features (I would actually enjoy having to learn new things but eh..). So here we go....
Canon A640 (black)
10 megapixle
1/1.8" CCD Sensor
4x optical zoom
2.5" LCD that swivles
Max res: 3,648 x 2,736
Canon A710 IS
7.1 megapixle
1/2.5" CCD
6x optical zoom
2.5" fixed LCD
Max res: 3,072 x 1,728
Digital Image Stabilization
Summary: The 710 has less megapixles but more zoom and the nifty stabilization ability which makes for less blurry photos.
Canon A640 (black)
10 megapixle
1/1.8" CCD Sensor
4x optical zoom
2.5" LCD that swivles
Max res: 3,648 x 2,736
Canon A710 IS
7.1 megapixle
1/2.5" CCD
6x optical zoom
2.5" fixed LCD
Max res: 3,072 x 1,728
Digital Image Stabilization
Summary: The 710 has less megapixles but more zoom and the nifty stabilization ability which makes for less blurry photos.