We've seen photos of the HTC Mondrian but we havent' seen it with any AT&T branding (where it's likely to land). We now have a rendering from ROM aficionado 911sniper that shows the Mondrian with AT&T branding.
There's no telling what the actual device will look like or if it will keep the Mondrian tag. But it's always nice to see these renderings and think of the possibility. Hopefully, over the next few days everything will come into focus and we'll have "official" images of the Windows Phone 7 devices headed our way.