Sean Corfield has been good about keeping us informed about the performance of minority browsers (opera, safari, etc) on the new Macromedia site, and with the Macromedia tools in general. A week or two ago he posted about the problems that some browsers were having with binary posting.
Since then, Opera have released Opera 7.10 for Windows, which now supports flash remoting!!! yaaay! I really like experimenting with remoting, and having to open up IE every time to test was annoying me. now I can test in the comfort of my own (preferred) browser.