Let me start by mentioning my specialty is rpg's and obscure titles.
Month of April:
PS2 -
Arcana Heart - 4/8/08 ship date; a fun, fast paced 2D fighter (they still exist) that emphasizes on female japanese stereotypes with super vertical combo's.
Persona 3 FES - 4/22/08 ship date; an expansion, if you will, of the original Persona 3 which was a fun japanese style rpg with a darker storyline.
DS -
World Ends With You - 4/22/08 ship date; an original strategy rpg set in Shibuya, JP, highly anticipated by the fans. Hard to describe this one, it's unique.
WII -
Okami - 4/15/08 ship date; that's right it's for the Wii now, if you didn't play the PS2 version you missed out. Get this one if you own a Wii.
Mario Kart - 4/18/08 ship date; what can I say about Mario Kart, everyone loves it, it's fun! Another must own.
Castle Shikigami 3 - 4/29/08 ship date; this one is a bit more obscure, the sidescrolling space shooter. CS 2 was/is available on the PS2.
360/PS3 -
Not much this month, I am REQUIRED by objectivity to list Grand Theft Auto IV as releasing on 4/29/08, but I absolutely abhor Rockstar. They've gone out of their way to fan the flames of idiotic video game extremists like Jack Thompson.
PC -
Orange Box Split - 4/8/08 ship date; this is me saving time and pointing out that you can buy any of the 3 individual games from the Orange Box for 29.99 a piece.
Assassin's Creed - 4/8/08 ship date; the PC version of the 360/PS3 game, and I must say, this game is being traded in ALOT at my store, it seems like a rental recommendation.
Escape from Paradise City - 4/10/08 ship date; you've got me, I have no idea what this one is about, seems to be a mystery rpg or something.
Turok - 4/15/08 ship date; the PC version of the 360/PS3 game. I heard it was fun enough, but not quite like the original. Love the Zero Punctuation review.
Well, I suppose that wraps up this month, if I've missed anything that anyone is really expecting, feel free to add it.
--Edited to add PC, sorry for missing that "platform".