Google Maps works (and is navigable) for me with the latest Opera release. However, I did have a problem while installing (actually, while trying to upgrade from 9.63); The initial upgrade install failed with an error code due to an unnamed "missing file," and so I re-re-installed it, with no problem the second time.
You might try reinstalling, or remove Opera entirely (except for your bookmarks and customizations) and then do a clean install.
That didn't change things. I did a full uninstall and re-install and the result is the same. It's not that the maps aren't working, it's that I'm being redirected to the HTML version of the Maps site.
I'm not signed into any Google account and I have deleted all Google cookies and history/cache.
I've set Opera to Identify as Firefox and Identify as Internet Explorer. I've tried setting my Google site preferences to Mask as other browsers as well. I get the same.
I've tried this with [maps.google.co.jp...] and [maps.google.com...] and [local.google.com...] All of them are showing me HTML style maps with non-dynamic zoom buttons and no ability to navigate with my mouse.
Working fine for me, Bill - Opera 9.64
Very odd. I keep getting the message:
Your web browser is not fully supported by Google Maps. [url=http://local.google.com/support/bin/answer.py?answer=16532&topic=1499]More information[/url] »
This is all on my Vista Business workstation. I tried installing Opera 9.64 on virtual PCs running XP and Windows 7 over the same connection and they work fine.
Maybe I'll revert my machine to a drive image from earlier in the week and see if that makes a difference... The only thing that's changed recently on this machine has been my upgrade of Opera.
I'm running Opera 9.64 more-or-less straight out of the box -- No user-agent spoofing seems to be needed, and GoogleMaps is working fine, including Satellite and Street View.
Failing that, the only thing I can think of would be to uninstall, completely delete your Opera profile from C:\Documents and settings\<username>\Application Data\Opera --after saving off your bookmarks, etc.-- and then re-install clean.
 Cross-posted. I'm on XP, so you may be on to something with the OS difference, there. [/edit]
[edited by: jdMorgan at 4:36 am (utc) on Mar. 5, 2009]
I reverted to an earlier drive image of my system, re-installed Opera 9.64 as an upgrade, and everything works fine now. (Thanks for the help!)
Maybe there's a glitch in the installer?
I will have to admit that the first time I upgraded I may have had a few other Windows programs running in the background. Perhaps one of them threw a monkey wrench into the works.
I'm glad this was just me. That said, it may be wise for people to remember to be careful when installing or upgrading software. These days it's easy to leave a lot of processes running in the background. It might be wise to remember to shut everything down first. Problems like this can still crop up.