For those who are interested in only determining whether a request is from a mobiledevice or not, isn't it possible that you could create a .browser file that only contains up to manufacturer level detail, and leaves out all the different phone models?
e.g. I don't want to know it's a samsung e250, only that it is a mobile device or Samsung even would do.
It would be great if mdbf could create this. Hopefully the .browser generator code you have allows for this easily?