FYI- IBA 1.1 image resampling to account for retina display
To make the ibooks ipad 3 ready IBA 1.1 now down samples images to 264 ppi(instead of 132ppi)
Because the display in IBA is based on 132ppi the measurements you see in the inspector are half what the resampled image will be.
IBA will down sample to double what the measurement is in the inspector
and anything larger then 1024pt in the inspector (2048 actual size)will be down sampled to 2048
example: if you place an image that is 3000pix square on a page and use at original size
IBA will re-sample to 2048px x 2048px
if you scale that image so it says 1500pt x 1500pt in the inspector
IBA wil resample to 2048px x 2048px
Anything scaled to less the 1024pt in the inspector will be resampled by IBA at twice that.
So if you scale that image to 900pt x 900pt in the inspector
IBA will resample it to 1800px x 1800px
if your original image is less then twice the inspector measurements IBA does not resample.
ie original image is 600pix x 600pix and you scale it to 400pt x 400pt in the inspector, it will not be resampled.
also note IBA 1.1 now converts non transparent PGNs to JPGs
