Sorry for late reply, went to Indonesia.
Well, I brought the screen protector at Tropicana mall, Petaling Jaya. I don't remember the name of the shop but it's near the Cinema at third floor. The seller said that it's a screen protector from Hori, selling at a price of RM 30 and helping me to install it on my Vita with another charges of RM 10. I manage to reduce the price until RM 35 including installation. The worst part is that i didn't check whether the packaging of the screen protector having it's logo "Hori".
Why i realize it's a fake Hori screen protector:
i. The packaging of the screen protector isn't like the original Hori. As far as i know, the packaging of the Hori screen protector are having few several types including red, blue, orange, green and black color packaging. Each with it's own uniqueness. The orange and black packaging Hori screen protector is the only type that covers the screen only, but the packaging of the screen protector of that shop that i brought from definitely don't look like the Hori's packaging.
** You can go to the main site and check how the packaging looks like.
http://www.hori.jp/products/psv/psv_filterpage/ **
Red: Glossy Front Film
Blue: Matte Front Film
Black: Anti-Reflection/Anti-Glare Screen Film
Orange: Standard Screen Film
Green: "Repair" Front Film
ii. The price is too cheap for a Original Hori screen protector, the best online price i got from a reliable and famous online seller is Rm 45 for the Red and Blue original Hori screen protector.
iii. The screen protector that i brought covers the screen including the PS Vita logo, but from what i see on the main site of Hori, the original screen protector are suppose only to cover the screen only, not inclusive of the logo.
iv. After buying for a few days, i realize that the screen protector on the edge of my screen are starting to come loosen at the edge. It's hard to describe it here, so maybe i will share a picture later. It's actually very minor and doesn't really affect my game play or anything, but for the price that i paid, it's a disappointment...
Edit: here are pictures of my Vita's screen protector. ( taken with my 2 megapixel handphone camera )


You can see that there is an air compartment on the edge of my screen protector, it's breathing air underneath the screen protector on the edge.
Nope, I brought a Vita WiFi unit with 16GB memory card.