Look we have all wanted a gaming device... we all know that Android lacks games, but this will not help, making a device almost an inch thicker just to add a keypad makes it almost redundant to have as a cell phone.
To my understanding is that these games that come to the Xperia Play, might come on devices with Gingerbread anyways, so why fret? all touch controls are better than dual touch analogs. Yes, I am a gamer, a PC gamer mainly(Team Fortress 2, Crysis, Halo, Resident Evil 5, Dead Space, GTAIV, I am a big gamer). However this is a cell phone, I am fine with time killers, Plants VS Zombies, Angry Birds, NOVA, maybe emulating NES or SNES(very practical emulators I should add). However playing Spyro on the go? Really it sounds great but when a Nexus S can do the same thing it sorta adds to the reason why you would want a device to just have keypad with hotkeys on it.
Plus, you can use a keyboard such as one like the Droid 2 or G2, play games the same, sure it's harder to remember, but at least the keyboard serves as a practical efficient purpose.