If the 8" is the same as the 7" technology wise (and I am pretty sure it is), then it will work fine with fingers, I have a Xenarc 7" in my car, which is very similar to the Lilliput, and it works great. Just keep in mind that the lillitput seems to break easy compared with i.e. Xenarcs, especially when it comes to modding them (such as flush mounting them), so if you get it through ebay, make sure you have a warranty. To be honest, I would order them from a place which has a good reputation and specializes in this stuff such as mp3car.com.