So on the one hand I'm very concerned about Roundup Ready crops, not specifically because they're GMOs, but because I'm concerned about long-term glyphosate toxicity. On the other, as far as I can tell from a small amount of reading, Bt corn, "golden rice" (rice that makes its own beta-carotene), the non-browning apple, and now this Bt eggplant are all probably okay.
I think that failure to understand this point, that each GMO is sui generis and has to be approached individually, has two dangers. On the one hand, there is a tendency to oppose all of them indiscriminately, and of course we're already seeing this. But there's also a real possibility that once that blows over and GMOs get more accepted, we might get complacent and not check out new GMOs as carefully. I do think some safety testing is in order, though in many cases the modification certainly sounds safe. Beta-carotene is certainly a valuable nutrient, and AFAIK is hard to overdose on. The non-browning apple gets that way by having one of its enzymes (polyphenol oxidase) turned off -- what could be dangerous about removing an enzyme? The Bt mods deserve a little closer examination, as they are producing a new protein, and there seems to be the potential for allergic reactions in some small fraction of the population; but Bt is considered an acceptable pesticide for organic crops (it is a protein, after all, not some chlorinated petrochemical) so it could well be pretty safe.
(All that said, I do still support GMO labelling laws. People should be able to know what they're eating, even if they overreact to that information.)