are there any changes to these cameras other than 4.0 and 5.0 megapixel? or are they the same as the 3's? did they improve trigger times?

I was hoping the video resolution would be better on the 4 but it's not. still the same crappy 320 x 240. the only differences (besides image resolution) I see is they support larger sd cards and have 32mb internal memory instead of 16mb (who cares!). I haven't purchased one yet but my moultrie d40 is going back to cabelas for a wildview 4.