cursor tab slider widget thing? Yeah I don't know what its called

[donavan]

So I have been trying to figure out what this thing is called and how or even if I can get it for a while now. A co-worker has a droid running Froyo 2.2 im on 2.2.2 but on a different manufacturer. He has this handy little tab thing that will allow him to scroll left and right through an input box to move the cursor to where ever he wants it. Does anyone know where in the world can I find such a beast or what its even called?