Today I found some more information on the latest Vocaloid Utatane Piko, which was released on December 8, 2010. Apparently, this new Vocaloid is the first character in Vocaloids to use the Vocaloids2 engine. Furthermore, his name was inspired by a popular Nico Nico Douga singer known as Piko. Thus, his name means "Sound of Singer", combing with Piko, it reads as "Sound of Singer Piko".
The price of this new Vocaloid adds up to about 15,750 yen (around $173.08), while a free trial was released on December 1st. Also, for some reason, Sony demanded that any uploads created with the free trial were not allowed to be reposted anywhere. I read that after one downloads the trial, a message from Sony pops up saying this. The only actual demos that are out there seem to be official... But who knows?
Anyway there is not too much information out there yet, but this is what I have gathered so far. If I find anything else on the matter I'll be sure to update this post and let everyone know.
[Information from Vocaloid Wiki and other various sites]
Thank you for reading and have a great day! 
~Razi-chan
