I have been experiencing some strange opaque data in the wbxml-files i get from the phone trying to sync.
it sends first a multibyte length variable telling me that it's 13 bytes opaque data follows, and then it sends
"./caldendar\1\1" (c notation) (notice those two 1's shouldn't even be there, and the length should be 11, those two 1's should be interpreted as two END's that ends the two surrounding tags)
do you know of any good decoder, the wbxmldecoder under syncml on forum nokia doesnt work that well with the syncml dtd.
i even tried the decoder at http://syncml.thover.com/ and it failed too even though it handled the ericsson t39 wbxml files well. (so did my old decoder based on kXML, but not any more.)