An enterprising nerd by the name of Ryan VanMiddlesworth is clearly a bigger Portal fan than you, since he's cobbled together a GLaDOS-simulating voice pack for Garmin Nüvis. Just don't try to prevent "GLaGPS" from constantly trying to divert you to cake-related points of interest, else you may find yourself tossing your Garmin into an incinerator. Video after the break.



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