Read the article on the MX-5000. It mentions 2-way RS232 and seems to suggest that the MX-5000 will include this. How's that possible in July, the shipping date which was mentioned, without a 2-way enabled processor? I'm assuming the MSC-400 can't be updated to 2-way. Is the 2-way functionality possible with the MX-5000 but something that won't be enabled at first shipment but will have to wait for a new 2-way enabled processor? What about the MX-6000? I wonder if it will eventually be able to do 2-way RS232.