Doesn't quite look in the same weight category as DZ, but it is. DZ, despite being all primitive and DIYy, is limited only by hardware. Give it commercial class hardware - get commercial class performance.
Just give me a second to finish the UI, all right? :)
Speaking of which, they have a nice touch screen as well.
UPDATE (2012/02/22): All links are gone. Cursory search on their site doesn't produce anything close to original results, so I've decided to just leave them as is, for those with enough time to investigate. Oh, and by the way, DZ has a shiny UI now as well.