Ilovemyssl, as someone who makes a living from 3 x HD rigs, the primary one a HDX system, I have happily co-installed 11 to take advantage of faster than real time bounce on stem mix downs and film deliveries and used it for jobs today. Avids channelstrip, pro limiter and compressor give me solid tools for TV work and I only need to open PT10 for de-noising (which I could probably do in izotope RX standalone if I wanted to). I wont need that once waves have their noise reduction plugs over "very soon", but for a lot of TV work I'm happy to switch now.
Feel free to delay things for yourself if that makes you happy. The co-install route makes it quite simple for the rest of us "pros".
