Is it available in CF 3.5? (edit: no, I checked - really, it’s not). I know that XmlSerialzier is, but yes, it has some limitations.
Do I need to be text? Protobuf-net option that works on CF2.0, CF3.5, Silverlight, Mono, .NET 2.0, etc .; and includes everything you usually need (including callbacks, etc.).
By the way, the Mono code (from "Olive"), last time, I looked, is not very complete ...
(edit) Json.NET; , CF; JSON, , .