I'm running the SVG test suite using Webview.
http://www.w3.org/Graphics/SVG/Test/20110816/harness/htmlObjectApproved/index.html

In javafx release 2.0.3, I had some issues with Webview, none regarding text.
But in release 2.1 it is rare to have a test case pass, the text is all mangled (missing, or overwritten) in virtually every test. It has become unusable.

I also ran the test cases using firefox and didn't encounter any text problems.

Further, I installed javafx2.1 and java 6.0_32 on a different computer (same OS) and got the same result.