Well, it doesn't have the "S" part of FPS quite yet, but Benjamin Joffe has developed a browser-based JavaScript "3D walker". It requires a browser that supports the ...
Tom's Hardware on MSN
Modder runs Counter-Strike clone at 60 FPS on the original Sony PSP
OpenStrike is a Counter-Strike clone built for the PSP, and the project is already running at 60 FPS with bot rounds.
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