1. Name. ThoughtFix says it won’t be called the Q2. An Origami Project forum member going by the name of UKQ1ER has been referring to it as the Q1 Ultra, but "Q1 Ultra Ultra-Mobile PC" doesn’t sound very plausible to me.
2. Price. Way back in June 2006, a German news site announced that "the Model Q2 from Samsung" would be priced at under $1000. However, Corrupted Mind (another forum member at Origami Project) has been told that it will actually be tagged above the Q1P and on par with the Q1-SSD. In other words, much higher than anyone would like.
3. CPU. UKQ1ER identifies it as "the new Centrino Pro, using the new Santa Rosa core." I’m not a processor buff, so this kind of information doesn’t have significant implications for me. I just like it when a previously unknown element is (rumored to be) known.
Just six more days before we know for sure!