It's not a new product, just a new name. Basic functionality has been there since v1.
I did some research on MJ's history and came up with some interesting facts...
v1: ran on a abacus (has record for longest running version, regarded as having the worst interface of any release)
v2: would have ran on Babbage's "Analytical Engine" (pre-released in anticipation of, but no working AE was ever built, hence v2 failed in the marketplace)
v3: ran on the ENIAC (popularly known as "MJ for ENIAC")
v4: ran on a host of IBM mainframes
v5: two versions were released...v5C was for the Cray supercomputer and v5D was for the new PC-DOS based machines (JRiver pushed the v5C version heavily, thinking that the Crays would sell like hotcakes, and would become everyone's favorite personal computer)
v6: The v5D DOS version was upgraded to v6D. V6 was the first release to support Windows. V6D was eventually dropped, and all efforts were put into Windows platform. Loyal DOS users (who were also major tech stockholders) were furious at the discontinuation of v6D, and took it out on the stock market, causing the NASDAQ index to fall (infamously known as "Freaky Friday").
Interesting fact: Pre-production versions of v6 were to include hardware hand scanners to "lock" a persons ID to his/her copy of MJ, thereby preventing piracy. However, this would have bumped the purchase price from ~ $20 to well over $1000, and the idea was scrapped.
v7 and on: nothing here that we don't already know about EXCEPT that rumours of a v7CL (Command Line version) surfaced. Power users rejoiced and eagerly awaited for it to ship...but to date a CL version has yet to be released, despite heavy pressure on JRiver for it.
10-27