Yes it’s buggy – and probably caused revenue loss for me.
It does not switch to the mobile version on my Nokia E5, Opera MOST of the time. Sometimes it switches, sometime it doesn’t. Unreliable as it is, I don’t have problems with it – I can look for an alternative, so I just let it be there.
But to my horror I found after many hours that it detects my Firefox 3.6.13 as some kinda mobile browser and switches to the mobile version. My site was void of ads for probably all Firefox users and it seems to have affected my revenue.
Be careful if you are selling ads on your website!