I tried using SVG many years ago - but had to give up due to its lack of adoption and support by browsers. What finally killed it for me was Adobe announcing they were dropping development and support for their (aging) SVG viewer.
So I looked around - and turned to Silverlight, which is unusual for me as I normally avoid Microsoft technology on the philosphical principle that it will be closed, proprietary, idiosyncratic, designed for someone with a very strange view of reality and incredibly inconsistent from one version to the next. But - Silverlight is XML - no nasty binary objects in the nackground, - it implements .NET - which is close to a language standard and could easily become one - it looks like the sort of thing that wold not be too hard for other platforms to implement - and Microsoft might out their resources behind making it a wide-support platform - and did I mention that it's pure XML. How cool is that!
SVG is ok, but very awkward to use in applications, and it was designed in a world where the verb 'to gooogle' did not exist.