Has anyone bought or used a 3G video calling phone? I have had one for about 5 months and not a single soul I have met has got one for me to test it out

I quite like the idea of seeing who you're chatting to but I imagine it can have it's disadvantages!!
I think they could also pave the way for some quite good shenanigans. A jolly good way to view, ahem, cheeky? behaviour without the restrictions of a webcam.
I'd be intrigued to hear of any stories, good, bad or ugly brought about by use of these phones.