I've had this for a while and have no clue what it is. When I got it, it didn't have any roots so I just put it off to the side when I watered this morning I saw it got many new roots so I now have a little more interest. It had a tag that said Thailand Sea, but what is its real name.
I could be the Ada that Maureen mentioned - if it has a developing pseudobulb in the leaves that's probably it. If there is no pseudobulb, it's probably a Paphiopedilum. Otherwise it's pretty hard to tell.