well i'm almost 100% sure that there is no diff. other than cosmetic, the specification is exactly the same and they got identical features!
and for sqratch: have u ever >>ACTUALLY<< tried those new PTs (2100/2400/2410) cos' from what i heard they are damn good!
and the specification too, with 0.01% (thats like Technics baby!) and 2.2Kg-Cm Torque (thats about 45+% more than Technics with their 1.5Kg-Cm)
i'm not saying Gemini are better than Technics (god forbid!) but for home use (u know, learning and practicing) they can be better than Technics in some aspects (performance and money) cos' they are not in a club with some thousands of watts amp sys. or with some intense use...
if u got money for Technics, SURE! buy them!!!, but if u don't have money and ur gonna use the TTs just at home or small gigs be sure that the Geminis are just as good