Hi, is there an e-ink tablet with GPS available? I searched aliexpress and the title says e-ink GPS but the pic's all show color. Other consideration, is there an easy to way to get GPS signal into an existing e-ink tablet? OR, are there any color screens you can see in daylight with polarized sunglasses? Awhile ago I rooted my nook touch and was able to get GPS signal in via my phone but I don't want to use my phone and it dropped signal easily. Thanks for anything at all!