Just managed to squeeze a 6km walk in today, so a small route to put the 3500 through its paces, at first there are no noticable changes when viewing a route, activating the route etc etc, your still presented with the two boxes when following route, but the important one for me is the direction arrow button, the other one i tend to close,
The previous problems reported with this, now seem a distant memory, its function worked without fault, i wasn,t even walking fast due to our terrier just having been spayed, i spent a little time monitoring its function and am happy with the outcome.
The second half of my walk was devoted to playing with the screenlock, locking the unit for various lengths of the route proved that the track as memorymap stated was complete, no problems there.
I never used the sleepmode, so can give no opinnion on its function at the moment. I,ve tried looking in all areas of the 3500 and can find no other changes at least visually, apart from the volume button, although still the same visually as before, where you have a touchtone on and off command and unit volume +/- ..... the latter turns off to the final bar, in otherwords it still leaves some volume to hear, if that makes sense. maybe it was like that before the upgrade, i just didn,t notice.
So in conclusion, and not a very long walk my unit at least does all that i ask, obviously a long walk or ride will give a better result, i,m also sure the screenlock will see a very big increase in battery life, depending on its use.
Please be aware this short review was record of my unit which is now running menulauncher v4.12 and version 5.4.5 build1118.
Samsung nexus s 4.0.3
ice cream sandwich