Not sure which planet you guys have been living on for the last 100 years, but speakers generally work by having a cone of some material, along with a big magnet across back, where by the laws of physics come into play when an electrical charge is applied to the speaker driver assembly - so yes, if you pull the covers off of any speaker - they are all going to look like the ipod hifi.
apart from this Zune Octavio thing having drivers (like every other speaker in the ENTIRE world), and that the ZUNE docks in the top, i don't see many other similarites at all. For one, it looks like it's about double the size of the HI-FI, and looks like it's about a third of the depth? and it's all black. And doesn't have ports for the unit to breath.
From a design point of view, what exactly is it apple will sue about? that MS has made a speaker? Oh my, apple better get on the phone to EVERY speaker dock manufacturer in the world immediatly, since they all use speaker drivers. and have devices the dock into them. Apple might have more luck with their rediculous attempt to try and trademark the word 'pod' that they are attempting at the moment.
C'mon guys, seriously, this thing looks nothing like the hi fi, and there is NOTHING apple can sure for.