@amp2006 -- Thanks for posting about this news.
I have personally see this first hand, too many times since this update.
The problem seems mainly on the 120gb SLIM model.
After the update, trying to get the update, on the current owner HDD, it just random locks on the waving screen, or shortly afterwards.
Trying to replace the HDD, leaves you until two problems.
It asks for v3.40 or later on a usb stick, using v3.40, it sits for a long time, and then crashs with data is corrupted, or right away displays one of those weird 800xxxx error codes, to call Sony.
If you try using v3.41 when replacing the HDD, you get thru the checking part, it then starts the formatting step, and then about 44% or right at 0% crashs with "update data not found", removing and reinserting the USB stick does not help, and restarting the update on the same HDD, brings you back to the above error with 800xxxx code instead.
The only way I been able fix the problem so far is to go into recovery menu using the owner's current original HDD, and pick "Restore PS3 System", which of course does a full reset, and format of HDD, and then set the date/time, username, internet settings, and do the update right away.
After that the system seems to work fine with no problems.
And finally
YES, this latest in a line of crappy PS3 updates, the v3.41 is the first one to use the new "patching" system, making the download only 20mb to 40mb depending on your current firmware, instead of the full now almost 190mb download.
Sony really dropped the ball on this one!