RCON has emailed us to let us know they have updated the PSP Rhythm Composer and launched a dedicated website for it at www.iturzaeta.com/PSPRhythm. PSP Rhythm is similar to the Roland TR-x0x series drum machines and developed by Louie and Billy Iturzaeta and Tri Nguyen.
(Thanks for the pic logicbomb.de)
He has also updated his software, rewriting his sequencing code so the timing issues should be gone.
You can get it in our PSP Download section [here]
You can discuss it in our forums [here].