Note worthy Omni Directional Speakers..

I'll vote for the Duevel Planets. I heard them with Manley amps and preamp and that combination sounded like a much more expensive system than it was. It was engaging to listen to and had surprising bass for the size of the speaker plus the Planet has a modern art type appearance that would be easy to integrate into many home environments.

MicroWalsh Talls - not true omni, but easier to place. The Duevel Planets look hip...

If you mean more than strictly omni then I would add Shahinian.

Here's a Duevel Planets review on SonicFlare, if anyone is interested.

How about the grandaddy point source loudspeaker? Originally designed and built by Stewart Hegeman and now kept alive and current by Don Morrison of Morrison Audio. One of the only "real" virtual point source loudspeakers as well as one of the best woofer enclosures in the business.