This from ArsTechnica
Sony waives $99 mobile development fee in play for indies
Now anyone can make games for Vita and other Sony mobile devices without paying.
by Kyle Orland - May 8, 2013 5:25 pm UTC
It used to be that anyone with a dream and $99 could develop a PlayStation Vita game through the PlayStation Mobile development program. Now, all you need is the dream.
Sony is waiving the $99 publisher licensing fee for PlayStation Mobile as of today, meaning anyone can download the free SDK and start developing a game that will appear on the PlayStation Vita. PlayStation Mobile games can also run on other PlayStation Certified mobile devices, including the button-sporting Xperia Play Android phone and certain Sony tablets.
Games developed through PlayStation Mobile still have to be approved by Sony before being published on the store, but any game that doesn't contain objectionable content should make it through. Developers don't get to set their own end-user price for PS Mobile titles, though. Instead, they sell the game wholesale to Sony, which then turns around and resells the downloadable game at a slight profit through its store.
If you're the sort of coder who doesn't mind working in Sony's walled garden, this is a opportunity to get in there with no out-of-pocket investment.