The challenge in the cable industry is not the protocol of DOCSIS 2.0 vs. DOCSIS 3.0, it is the stranglehold that Scientific Atlanta (Cisco) and General Instruments (Motorola) have on the encryption technology for connection to 95% of the households in the US. Unless your consumer device "plays nice" with a Cable Card access to this encryption (and will not have access to VoD or digital (vs. rapidly diminishing count of analog) channels), then you have no hope of being successful with your consumer device.
The FCC attempted to make the CableCard a standard to allow an open market for consumer devices, but the Cable companies and their infrastructure have dragged their feet for over 10 years. The CableCard is a massive failure. The FCC was unable to bring the Cable companies and their suppliers to heel in creating an open consumer market. Future prospects are not promising.
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