you will need 3D glasses though if you want to enjoy the view.
WebGL is currently supported on all the major browsers, that's Firefox, Google Chrome, Internet Explorer 9...
I have 3D glasses (which I won (ironically) from Nokia last year) and I have been able to activate the 3D mode for Nokia Maps (activate by pressing the 3D glass icon at the top right corner of the screen), but I do not see any difference, though I think you need a 3D supported monitor to view this, I'm not sure.
I couldn't get the 3D maps to lod up on IE9 or Firefox, but it works fine on my Google Chrome browser, so if you cannot get it to load up, try using it on Google Chrome browser.
visit Nokia Maps 3D