I can confirm that the preloaded TopoActive maps that come with the eTrex 22x / 33x are this
Useless for cycling!!!
it did come with a warning in the destructions about not being able to navigate on road so I wisely kept my old SD card with Europe City Navigator which works fine in the 22x
they also do not have any topographic contours in the UK.
I just tried setting it to take me to Gatwick Airport. About 100m up the road it decided I needed to take a random and completely out of the way path and carried on doing so for the whole 20km ride, witn much ignoring and the device keeping recalculating which can't be good for battery life. Even when I was on a dead straight road towards my destination it tried to take me off road. It did do some on road turns but it seems only when there was not a nearby footpath to take me down.
The final straw was riding along the public road at the far W end of the runway, not good enough for this map it suggested I scale the 20 foot high fence with bike and ride around the apron road! at least it didn't suggest the runway which was slightly shorter!
in short, it might be quite useful following a pre-planned track sans navigation with a lot of canal towpaths which is exactly what I have planned this week as it will show the water. Otherwise don't get rid of your navigable road maps no matter how old if considering these devices (or be prepared to stump up more for them)
Bit of a cheek advertising this as a Garmin product as I presume you could download the whole thing for free from OSM?
