After I installed Safari for Windows, the second thing I did was see if it would run Silverlight. I loaded up the Airline sample that I had running locally on my machine and got this.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en) AppleWebKit/522.11.3 (KHTML, like Gecko) Version/3.0 Safari/522.11.3
...but on Mac it's usually:
Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en) AppleWebKit/XX (KHTML, like Gecko) Safari/YY
I opened up this app's Silverlight.js file and added an alert() around line 85:
var versionStr = detectAgControlVersion();
...and it reported 0.8.5. That means that Safari can see the plugin on the system, but the version should be 0.95.
I figure that the Silverlight Team is already all over this, so rather than solving the problem for them, I added:
agVersion = "0.95.0";
...around line 65 to force the issue. This got Silverlight loaded into memory, as seen in the Process Explorer screenshot below...
...but nothing showed up. Blank screen. No amount of windows jiggling or resizing (to force a paint) would get it going on my system.
UPDATE: Tim Heuer tried the same thing and says the Silverlight Team is on it and that Safari smells like Opera to Silverlight. He also says he was able to get a control to show while I was not.
If this browser is going to get some share (and it likely will with 1 million iTunes downloads a month - they'll likely bundle it virally) then Silverlight support is a must.