No, but XeeBo is one of the smoothest & cleanest skins. It has no lag for me on ATV2. I recently switched from Mediastream Redux which was also good but I think I like the cleaner look of XeeBo.
Wirelessly posted (Mozilla/5.0 (iPod; U; CPU iPhone OS 4_3 like Mac OS X; en-gb) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8F190 Safari/6533.18.5)
No idea about ssh'ing from an iPhone to the ATV, probably easier just to use a computer.