SEGA have made the right choice in delaying the PlayStation Vita version of Jet Set Radio in order to optimize it or in other words, tweak and fix any last minute bugs before released to the general public.
The news comes from both the American and European branches of SEGA who have also stated that the new release date will be announced soon. At least they’ve provided a reason for the slight delay and I@m sure gamers would rather wait and get a proper, bug-free game than have it released without any care and attention to detail, then complain about it later.