i ve decided to give it a go with ovi store qimageviewer as the default image viewer is one of the most frustrating apps right now for me as i use it a lot and its not usable it in portrait mode.
qimageviewer seems nice, a bit slow, cpu consumption off the charts, and lack features..so default maemo image viewer is still way better.
anyway qimageviewer has a perfect portait mode and also the rotation gesture for zooming is great..so..wish this two feature could be implemented soon in default maemo image viewer..it would be kickass really.tks