Badgerfish JSON format parsing error

We have recently changed our JSON format to follow the Badgerfish (http://badgerfish.ning.com/) format. The SoapUI xml parser appears to choke on the $ which is standard Badgerfish style. Since the xml parser fails, I am unable to use assertions with these APIs. Here is an example syntax from the Baderfish website:

Text content of elements goes in the $ property of an object. <alice>bob</alice> becomes { "alice": { "$" : "bob" } }

It appears that Google is also following this Badgerfish notation and that this notation is becoming more common. Do you plan to support this notation in future releases?

I have duplicated the xml parsing error on both SoapUI Pro 4.0.2 nightly and the new 4.5b1.