Do you have one of these and it works on the Optimus V?
Nope. Sorry, I should have specified that I haven't tested them. I was in a bit of a rush and I was just hoping to get boxerboxer pointed in the right direction.
There's no reason the microphone and headphone jack shouldn't work.
Whether the button works or not is up in the air. I suspect it will work for some programs and not for others. But this is just my hunch based on snippets I've read from various places regarding other phones using iPhone headsets.
If I was looking to purchase, I'd browse the related products before making a decision.