Just saw the V3xx this evening at maze Ayala. Bago pud ilang display.
Its pretty much a V3i upgraded with 3G features. It sure took moto some time to figure out how to put a decent secondary cam.
the only difference the v3xx has from v3i from the outside is the marking of the camera. V3i has the MEGAPIXEL written near the cam while the V3XX has 1.3MP 8X ZOOM.
On the inside, take a look at the tubular part in the middle (hinge of the phone). Here is where the secondary cam is placed.
I dont know if they changed the screen resolution though. If you look at it side by side with the v3x, it sure is alot sexier(thinner). But much more expensive at its Php16,500 tag.