My website has a very precise “area shape” definition. It’s pixel perfect.
Here’s my website
Move your mouse over the departments on the left, you’ll see the departements highlight on the right. If you move the mouse over the departments, you’ll see that it’s a pixel-perfect precision.
My big problem is about “Ile de France”, which is the center of the France, almost 1/5 of the population lives here, so what follows is a huge problem to me.
Nota: before trying on your mobile phone (if you do so), just verify that what I’m saying is true: on your PC, go to the main page (link before), zoom in (ctrl + keyboard shortcut) and move your mouse over the department “Ile de France”. You’ll see that the precision is perfect: move out of the department, move in, you’ll see by yourself the precision of the “detection”.
On my Sony Ericsson Xperia Arc, the way “area shape” is handled is a huge problem.
Here’s what it gives when I try to click on “Ile de France”:

Getting closer (to show the problem):

Getting even closer:

And to show which departement is selected:

As you can see from the lastest picture, the map is very enlarged, but it still doesn’t want to select “Ile de France”, whereas I clearly click on the very middle of the region.
I mean I’ve been working for 3 days to get a map of France that precise, I wouldn’t like to throw away that work and do a coarse work…
Is this a bug? Is this considered a normal behavior? Do “iPhone” mobiles have the same problem? Do you have a workaround?
-Edit-
According to Andrei G, it seems to work on GalaxyS2, but still need to enlarge the map…
-Edit-
I’ve got exactly the same problem on some Android tablets. I need to make a “mobile” version. This is soo stupid.
I see no problem with your map. The issue is that a human finger is not nearly as accurate as the mouse. If you enlarge your map enough, you’ll be able to select the appropriate region.
I used GalaxyS2 to go to your site.
Also, the hover effect is not going to work with a phone, as the people don’t drag their fingers on the screen when they want to click your area.