There are a couple of very excellent keiki threads buried in the forum that I've read.
I've seen them on my own dends and on forum member's phals. They typically grow off a floral spike, or simply a cane (in my case of a dend). They're both root and leaf. That's why your shot looks more like a normal growth. If it's coming out of the ground, it's a new growth. If it's mid-air with both leaf and root, clinging to some other growth then it's a keiki.
Someone help please, where's that awesome thread where Louis highlighted keikis coming out of keikis?