Are you sure? afaik, a communication protocol is not software, so can be analized. we have several open source attempts for different protocols like samba or cifs, activesync, ntfs, and every wine component.

the real issue, is the fact that is HARD AS HELL, and will burn you life down. even with experienced programmers, is a task that can take months, just to make an unstable version.

is not for everyone, we need heroes for a task like this.