As to my knowledge I have seen no major issues posted about the PN63B590 that would require a firmware update. I have checked the AVS forums and have seen no postings about the 590 having any problems with "cinema smooth" or buzzing noise (at least not more than any other plasma TV). I have had my 590 since June 3rd and it has worked flawlessly. Also,I don't think its really an exclusive model to Best Buy. I purchased mine from a competing retailer and have seen it readily available from other on-line retailers. However, I would think if it was mainly a Best Buy model it would in fact make it a very high priority for Samsung to fix any potential problems. Best Buy is the largest electronics retailer in the country and pretty I'm sure Samsung would do any thing it could to keep them happy.
I am concerned that there have been no firmware updates for the 590. Unlike its LCD cousins, all of the similar plasma models have had multiple firmware updates so far (some up to rev 9) except the 590 (including its nearesr similar models the 550, 560 and 650). It seems unlikely the 590 is uniquely free of the issues those firmware updates are addressing.
I realize the 590 was a commissioned model originally for Best Buy. Does that make it a lower priority for updates? Is there a plan to provide a firmware update for the 590 soon and in general will it receive updates in a similar timeframe as the similar plasmas with the same software?
In particular, is there any status on when the Cinema Smooth glitch will be addressed in the firmware?