Well the way I see it, Gingerbread should've been out on most phones by the holidays (hence gingerbread) I would think ice cream would be out this summer, but if it goes anything like gingerbread, MAYBE we'll get gingerbread by summer, and Ice Cream by the end of the year. I guess we can consider ourselfs lucky, the Galaxy S line up is still waiting for Froyo LOL. and to top it off, the Fascinate's car dock using the USB to port the sound out to a 3.5mm jack... Which is doesn't work without 2.2, so they really got screwed. I'll take my locked bootloader droid X over that anyday.
But back to the topic... Honeycomb would be cool to see on an X, I'm sure there will be themes to make it look like it, just like we have gingerbread themes out now for ADW and such, but I wouldn't count on an official Honeycomb ROM